Go slow. Do not rush. Plan your next move or moves.
Some holes are for feet only, hands don’t work on those.
It is okay to fall. But keep trying and going. You will get up there eventually.
If you do fall, hopefully you are supported by a harness. Or at least someone to catch you.
You can’t expect to be successful in a climb when you keep using moves which have failed.
It helps to have an instructor or someone experienced to guide you and show you the moves and techniques.
Rock ckimbing can be more enjoyable when you do it with others.
Take a rest if you have to, and continue your climb.
Shoes matter. It is challenging to climb some walls using running shoes.