the simplest way to learn to fold and play poker, but not the best or the profitable one , is to do like me: get to 25nl and lose your BR there, then build it up again, lose it again, built again and lose it again,.... after this believe me you will learn to fold, assign ranges , count combos. after 3 BR lost in 25nl ( thats over 1500$ lost in 2 months ) cause you play like a jackass ( worked 2,5,10nl cause there are even worst idiots then me) you will learn to play poker

or you could just start doing it now in low stakes and save yourself from mind fcking like happened to me