You probably went onto LFGSS, they are mainly just cnuts.
Fixed is great, i love it. Its all i ride, and im faster on it. Ive done 200rpm on a 65" gear, and i think ive done 200rpm or close on the 72" gear i have. Ive also gone into Derbyshire on the 72" fixed and done some pretty steep hills, and been around wales on it.
Fixed in traffic is fine, you just have to be confident with fixed. Ive rode in very heavy traffic on my fixed and its fine. Use your front brake and leg brake, or have a rear brake if you need and you will be fine. You need to learn to relax your legs and sort of coast along, just having the pedals pushing your legs around.
Dont do what alot of the fixed gear people in london do and put on a big gear, you dont need it.
Dont be ashamed to have 2 brakes if you need.
Dont worry if you make a few mistakes, like stopping peddling or something.
To get into the straps, put one foot in and tighten that one up, then, make sure the other one is lose, push off andtry and put your foot in. Then, when your foot goes in, you need to grab the bit of strap hanging off and tighten the strap on your foot.
Sounds complicated, but its not bad when you get used to it.
Clipless on fixed is much better though IMO.