goodatthis
Veteran
I have recently switched to CFOP and average around 18-19. My F2L takes 8-11 seconds and I have a terrible last layer (4LLL).
1. How should I go about learning OLL and PLL?
2. How much should I improve once I have learned both?
Just learn a lot of the easy OLLs, and also learn the easy PLLs. Your times should drop maybe down to 7 seconds if you learn full PLL and half the OLLs, that's about where my LL is and I average 17-18. My TPS is good, but my LL is really locky and pausey.
also, you're kidding about your ZZ best being 5.22 right?