HELP! Totally Lost

[OhioSt2k]

So, I am taking a chance here and hoping some people will offer me some help. I know this board can get really insulting but, I have faith some of the good regulars will post.

How do you make the transition from 1/2 to 2/4 ? I cannot do it, I feel like a weak tight that just gets destroyed at 2/4. At 1/2 I run like 20/18 and I feel very comfortable there as a 6-7 ptbb/100 over nearly 100K hands. However, when I move to 2/4 all my PFR are RR and all my continuation bets are raised. People just bully the snot out of me. Do you just start pushing with more marginal holdings ? Does TPTK somehow go up in value ?

Please help me understand what I need to change to make the move from 1/2 to 2/4. I am open to any suggestions. I am jst sick of feeling bullied at 1/2

Thank you!