If you have to ask this question, then you should not be riding on that road!
Find an alternative route that doesn't have big truck traffic, or drive yourself in.
Even if you decide to say screw whatever I've said, there is only so much I can say because it sounds like you don't have the experience to be riding in those conditions on that road.
A $10 helmet told me a lot about you, you don't ride much, maybe around the block a bunch of times, or you're telling me that you don't think your brains are worth more than $10, since I don't know you, I can't tell you what the value of your brain is. Study this site:
https://www.helmet.beam.vt.edu/bicycle-helmet-ratings.html There is a score number on the bottom left under each helmet, the lower the number the safer the helmet, find one that fits your budget that gets the lowest score, then try to buy it somewhere, a lot of them will only be sold online.
Next, buy a construction safety vest with wide reflective bands in some neon color that doesn't match the background you'll be riding in, for example, don't buy a neon green, or neon yellow vest if there are a lot of trees around, get a neon orange one instead, buy a cheap $15 or so vest from any home improvement place. If it's hot where you live, they make a mesh style so air can blow through, if it's not hot then they make a solid fabric one.
Next, buy a very bright rear flasher, NiteRider has a very good one called the Omega 330, it puts out 330 lumens to the rear, and it has various flash patterns, find the one flash pattern that will stand out the best for day time riding, you can test this by mounting the light to the bike, turn it on to the first flash mode, step back about 250 feet and see how it looks to you, then try the next setting and step back 250 feet, keep doing this till you find the one that stands out the best from the others.
Then you will need a front flasher for daytime riding, if you know at some point you could be riding in the dark home you will need a very bright light, those usually come with flash/strobe patterns as well. NiteRider Lumina 1800 or 1500, or the 1200, but nothing less than 1200, those are very good lights, the light is also very ruggedly made, and unlike most lights when the rechargeable battery goes bad you can send it back to NiteRider and they will for about $30 replace the battery, go through the entire light, reseal it, and send it back to you. If you have time to wait for the front light you need to go to the NiteRider site every day and check to see what refurbished lights are available, and keep checking to till you find one you like and buy it fast because they go quick, but you'll save a lot of money on their refurbished lights, I got my 1200 refurbished and it looked brand new when I got it. They do not sell refurbished taillights.
If you won't be riding at night then all you need is some sort of flasher, then the NiteRider Swift 500 is a great deal.
These lights are all about trying to grab the attention of someone yabbying away on the cell phone, and hopefully, they'll look up and be hit with something flashing and will wake up enough to pass you safely. The vest will be another visual cue something is on the road, be careful.
Here is a website I want to read it really well:
https://bicyclesafe.com/
Here is another tragic website with a video you need to watch, this is what happened to someone who was too inexperienced to be riding a bike in the city. This video is brought on by bicycle activists, they don't have it correct, they put the blame on the truck driver, but he was only a little bit at fault, she was the primary at fault person, let me explain what you will see. The big truck is a flatbed they have the worst turning ability of any type of truck on the road, BUT, never EVER get alongside a big truck, bus, motorhome, or even a car, stay behind them. The first image of her riding, she is in a designated bike lane. But if you watch a 1:00 in the video you will see that the bike lane changed, it is now in the second lane from the curb, clearly marked by a bike symbol and directional arrow, and a bit earlier there was another cyclist in that lane doing what he was supposed to be doing. But Anita stayed in the far-right lane next to the curb, that lane was for buses only, and buses go into that lane to let passengers off and on, Anita was not paying attention to any of that. At 1:03 you can clearly see that the truck's turn signal is on, remember, he has to swing wide to make that turn, so he's taking 2 1/2 lanes to prepare the wide swing, he needed all those lanes to make that turn. You can also see the rider at that same time frame, she is moving faster than the truck and is about to come alongside the truck, remember, do not come alongside any truck, car, or whatever, and you are about to find out why! Because his truck is angled to make the wide swing, he can't see her in his mirror, you can see his angle at 1:07. The law that is quoted at 1:13 is not correct for this particular situation, because that lane she was in was a bus lane, not a traffic lane, had it been a traffic lane then the law would have been correct, but it was clearly marked with signage and special dashing on the pavement that it was a bus lane making that law they quoted invalid. The truck hits and kills Anita, but he never knew it because of his wide turn his rear tandems probably hit the curb and any type of jolt would have been what he thought was the curb.
Here's the video:
https://www.massbike.org/anitakurmannvideo
What did the driver do wrong? He should have realized he passed a cyclist and should have waited to make his turn and stopped, and watched both mirrors till he saw her again which he failed to do. Hit and run is highly questionable since I doubt he knew he hit her, with all the witnesses around and cameras it would have been very stupid to hit and run knowing all of that, so I have my doubts that he knew. Anita also did something else wrong, she stopped her bike to wait, when she should have turned toward the curb and jumped it to safety, but she had no idea how wide of a swing a truck makes.
Here are two videos, and at the bottom of the page an interactive thing you can play with, all designed to show you what a truck can and cannot see, and where you should be:
https://cyclingsavvy.org/what-cyclists-need-to-know-about-trucks/
The one thing not addressed by the two videos above is how far you need to stay behind a truck, the rider in the first video is doing it correctly, he is about 1/2 to 3/4ths a car length behind the truck, this is in case the truck is on an incline that when they start to go they could roll back a good 3 feet, hitting anything that decides to be near their bumper.
