im sub 18 and aiming for sub 15 and I do full pll full f2ll and 2look oll im wondering if I should learn full oll or improve my f2l my average f2l time is like 6-8 seconds
It sounds reasonable! When I was at your level I focussed on just solving faster rather than technique. I think you do need to give more detail on how long things like cross, f2l, oll, and pll takes! That gives us more context of what you can work on next