Hopefully, you have a gym where there is a mirror in front of the squat rack.
Look straight at it while doing squats. This is to make sure your form is good. Do not look up. Do not look down. Look straight ahead. Look at youtube videos of Ronnie Lott. He's doing it right. I can't think of anyone else off the top of my head who does it right, but there others who do it right and others who do it wrong.
Do not rush being able to do a lot of weight. Check your ego at the door. Ronnie Lott can slap on 800 lbs. , but he's been lifting for years. Do not get in a macho-man rush to lift 135 lbs., 225 lbs., or 315 lbs.