You can’t sit and wait for good cards heads up. You have to get in there and fight. It’s mostly going to be one junk hand vs another junk hand. The fun thing about heads up play is you only have one player to
bluff now. You don’t have to play like a maniac with mindless aggression, but smart aggression is a must heads up in my opinion.
It’s going to take a lot of experience to get a good feel for heads up. In the meantime study everything you can on heads up play. Good luck!