I remember when I was training I also struggled with the taxying part. I always wondered how others made it look so easy. I also struggled with the breaks. I never found it easy to break evenly but don't worry as eventually it will all come together. If you think you'll benefit you can ask your instructor to spend some more time on the ground practising.
Good luck with the air law exam. By far the worst one to learn for me.
Where are you doing your training?