To get better, you need to practice a lot. Run lots of battery packs and put in the time. There’s no substitute.
Always run your tires in the same spot. As they wear out, they will develop a natural wear to them and break in specific to the direction they run in. Don’t rotate them. Clean them after a run and put them back in their appropriate location. Mark the tires to make identifying them easier.
Make sure you have the right tires for the track. To speed up this process, reach out to some of the fast local drivers.
It’s a common mistake to use too much motor. When starting out, go with something like a stock motor until you learn to drive with consistency and throttle control.
To get you in the ballpark at a particular track, look at set-ups on the internet and download the set-up sheets so you can put it on your car. This will get you up to speed quicker.
To get a good bond when gluing tires, I start with motor spray and then use Simple Green to ensure the area I’m gluing is nice and clean.