First off, it's not that easy. Ban rates are high and you have to learn what works and what doesn't(trial&error). If you are looking to make a quick buck you may as well go sell drugs or run a lemonade stand. What i'm saying bluntly is don't expect to make any profit. Innova's advice is about as much as you will get out of most people around here but take it with a grain of salt. Nobody is going to come on here and say "So you need to farm this, do this, use this VPS, and you won't get banned doing this". Guys who actually have productive farming methods aren't on forums running their mouths about it. You have to find your own way while picking up knowledge from here and there. All I can say is expect to get banned a lot, expect to be frustrated a lot, and take everyone's advice with a grain of salt.
Happy farming!