How the f… do I play feral

As the title says I’m a resto Druid main and mainly do m+ up to 10 ish. However as there are more than one person in my friend group that plays healer I sometimes moonlight (Druid pun) as feral. However, my damage is so shit! If anyone have any advice I will gladly take it. Tried to watch som vids but it’s not working.

Help😅