The game is pretty generous when it comes to hitting obstacles, so don't twitch to correct your trajectory.
Patterns
Learn the patterns the obstacles arrive in and be ready for what's coming next.
Rings
You do not have to go through the rings, but you look cooler if you do.
Various Tips and Tricks
Don't twitch to correct your trajectory it's ok hitting obstacles. You don't have to go through the rings so don't force yourself to do it. Learn the patterns the obstacles arrive in and be ready for what's coming next.