OLL seems daunting but most olls are just variations of each other, like the basic alg for dot olls are nearly identical, but its really hard to execute them. The sune alg and its variants solve more than 10 olls i believe.. and fruruf, furuf can be found in quite a few olls. a thing you should take note is not to learn algs that have similar moves or almost identical cases, because it could be easy for you to mess them up, that's what happened to me when i tried to cram all the dot olls in one day. Take your time and learn efficiently and drill them to make sure you can all your olls sub-2.
Also, learn good algs, go to a reputable cuber's website if they have one or find multiple algs for one case and see if they're fingertrickable, that way you don't waste your effort learning bag algs, i've learnt my fair share of terrible algs just cause i didnt know they were bad.