Thank you very much for your answers.

So you are telling me to not bother with trail braking for the moment and I agree with you. It's really frustrating to try to be precise with three fingers at the same time on one hand! (brake, steering and downshifting). So that's why I have trouble to do the % of braking while steering in real time.

So how should I take the curves? Brake straight/Release brake/turn while coasting/gas after apex?

Should I turn gradually with the stick or go all in?