SadMathematician9647

I set a pb of 16.86 a couple days ago and got a couple sub 20 solves in the past few days but there are some days where i can barely get a sub 30 solve and sometimes ao12 a sub 35 i find this really frustrating as i think my f2l may be the problem and i don't know how to fix it my current ao100 is 28.94 but i struggle to consider myself sub 30

does anyone know how can i bring my average down from 25 to sub 20 i know some oll and pll algs and some f2l's

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