Beginner's query

Recently, after many months of hesitating and procrastinating, I've started Starting Strength . Apart from a gym session back in secondary, this is my first experience of lifting.

Because of this, I don't have much upper body strength at all. At the moment, my right bicep is slightly bigger than my left. This is mainly because I use it to lift most things and not due to my being a chronic masturbater :pac:

Will my left and right eventually become the same size or should I do additional exercises to try and speed up the process?

I think I can see an imbalance when I squat as well. It looks like I'm tilting slightly over to my right leg. Will this go eventually?

Thanks.