Your accident sounds similar in many respects to my one big off. I was following a car at a safe distance downhill at about 30mph and the driver of the car behind was maintaining a good distance to me. There was a side road that joined the main road from the left at quite an oblique angle and had a very good view up the main road. This allowed the driver of the car that hit me to roll towards the junction fairly swiftly and then accelerate hard to make the gap between the two cars. He hit me hard. He was in effect aiming for me. The following driver hadn't been able to see where I'd been thrown (I'd ended up under another car) and there wasn't a single straight tube left on my bike.
I felt quite elated and lucky at the time (I had a brief moment before impact to realise I was in a lot of trouble) and I was in the best mental shape of any of the people involved. The most painful injury was a stubbed toe (though I did break an arm and my left ankle where the car actually hit me was fubared in terms of soft tissue damage).
The difficulties arose later. Although the incident at the time wasn't particularly frightening or painful the flashbacks were horrible and my edginess and jumpiness was hard to live with (a friend used to throw handfuls of coins at me and watch me catch them, which did actually help make light of the matter). I felt particularly isolated by many people's insistence that I shouldn't get back on a bike, and then when I did a succession of near misses would reduce me to a quivering wreck. The reason I mention all of this is because I found that it is important to be able to talk about your experience with people that understand. I could have really done with someone to share what I was going through in the days and weeks afterwards rather than carry the effects around for years. As you can tell I still need to let it out from time to time twenty years later. Something that happens as suddenly as this but leaves you dealing with the consequences - injuries, compensation, sourcing replacement bikes etc., for quite some time can affect you in ways that you wouldn't expect.
Hopefully you'll bounce back with out a care, I've suffered more serious injuries in other sports and in other collisions and not suffered any after effects. But if you do have any thoughts or experiences you'd like to resolve this is a good place to air them.