I usually spray my base at around 20 psi and my clear around 25-30psi.

You need to final sand with a higher grit sand paper too. Looking at your paint there are a lot of sand scratches. Before you spray the clear wet sand with 1000 and re-base to get rid of those sand scratches. I usually final sand with 800 around the primer, and grey/1000 wet where I blend.

And for the clear you bought at autozone, i've never used to so i can't say anything. But from the looks of it, doesn't look good. Just go to a paint store (finish masters off of huricane shoals in lawrenceville) and get a clear coat/activator kit. you can get a kit at around $70 for the smart clear, it is def. much MUCH better than the stuff you bought at autozone.