Quite a soapbox considering that you have no idea what my detailing experience and capabilities are. I'm more than comfortable getting the paint 100% perfect prior to application.
Lionel, I think it's fantastic you're doing this yourself, and CQ UK is probably one of the best available coatings to DIY, and pro, market.
But as others have illuded, there is a learning curve. Any nano coating, requires the paint to be near flawless. This requires machine polishing. Even the best tesla paint we've seen, needed a minor polishing with a DA. Then comes prep for nano. The surface must be super clean. So make sure to get CarPro Eraser and wipe the paint really well.
Then comes applying CQ UK...it's very dependant on ambient temp and humidity. Luckily, you're here in SoCal, and we've been having great weather the last few days. I'm use to applying Finest, and it's a little different than UK. UK is a bit thicker I think, but keep an eye on it to make sure it doesn't flash too fast. If it does, and you'll know this because you'll have streaks that you cannot wipe off anymore, not a big deal. Just polish again, and re-apply UK.
Make sure to bake after applying. Ideally a warm/hot day for a few hours. This allows the solvents in UK to flash and adds more durability and the gloss increases as well.
Get some reload while you're at it...excellent post-wash maintenance nano spray sealant.
Hope this helps.
As other have already mentioned, if you decide to use a pro, Wes at Elite is one of the best.