I officially quit my job and stepped into IM around 1 year ago. At that time i don't even know what's adsense. lol.
It's really not that difficult. Im not gonna tell you how i made the money. But you can definitely earn this much. Few suggestion:
1. Don't listen to the main stream. I can tell you 90% of what you heard are FAKE. 99% tools are useless.
2. Learn the basics. Allocate some time everyday to learn the basics. If you want to be a serious IMer, html, css,javascipt,php is a must. Don't worry, all the time you spend will be paid back.
3. Make some friends. I got lots of help from 2 friends.
4. Prepare at leat 5k to invest. I invested decent $ in tools, WSOs, paid service, 99% are lost. But i did learned something behind these tools, services.
5. Test urself, if you didn't make your 1st step. Do multiple test, figure it out urself, for example, u can step up 3 sites, adense, cpa, affi offer on each, and see which one pays the best.