How do you actually learn to make cheats.

I've got roughly a year and 3 months (15 months) coming up of pure free time. I want to start learning cheat development as i have been cheating for roughly 2 years now (mainly cs2). How should i go about it. I know nothing so right now im assuming i just spend the 15 grinding c++ so that later i can actually start. I also know 15 months is not enough to know how to make really anything good I just want a guide of what to learn and when.