I skipped some at first (looping & picture tricks) but I went back to learn all the beginner & intermediate ones. For most tricks I’m usually satisfied to be able to remember the trick later (and perform it if not competently, at least without dropping the yoyo) but the longer unresponsive tricks I spend a lot more time on, since I play a lot of 1A.
I used a responsive yoyo for all of the beginner tricks, some of the intermediate tricks (stop and go especially) and unresponsive for pretty much everything else. Since I first learned a bunch of these in middle school, picking up the simpler tricks didn’t take too long.
Later I went back to do some of the tougher tricks on a responsive yoyo! That was a lot of fun. I still have a lot of advanced/expert tricks to learn, though.