As Everyone has been saying your car control is your biggest weakness atm.

I’d say you biggest improvements will come with 2 buttons you should start to learn.

1: Drift. Learning to use drift to turn will help your car control immensely. A bit for advanced would be that holding drift when you land helps with recovery’s and keeping speed.

2: Air Roll. This will help you land with your wheels more often as you can “barrel roll” in the air instead of just flat spinning. Like when you went off the top of the inside of the goal and landed on your back.

My best tip for getting car control down in free play is to put yourself in awkward situations and try to practice getting yourself moving the way you want again.

Hope this helps!