Free: Contests & Raffles.
I'd start with paper tuning, stuff every archer should do then start adding things to do on your own. Learn how to tie nice servings and D loopsLearn to cut and wrap your own arrows, along with installing various inserts and knocksThen you'll be ready for a bow press.
Depending on the type of bow you have you can build a bow press for cheap. I did it for about 30 bucks. Working on them is pretty easy.