Hey buddy loose the attitude, no wonder no one wants to work for you. You're 20, give me a break. You can be certified all you want but a piece of paper don't mean jack.
This comes from a guy with similar credentials; I am 20, own my own business & work at dealership full time. I have full ASE certification (passed all 8 tests the first time, need one more month before I can say I am a master- time is keeping me back and I bet same goes for you, just because you pass the test doesn’t make you ASE certified), I lack one Ford class to be a Ford Master, Associates degree, refrigerant license, and other shit you don't have, such as proper grammar. Loose the attitude, you think you're a bad ass and obviously you need an older tech to come and put you in your place. Its guys like you that get us young guns a bad rap.
12.50? No wonder you can't get anyone decent, shit dealers are paying $14-16 for parts changers WITH benefits and they're in town and most have air conditioned shops. 100 bucks doesn't even buy one hour of service where I work.
Up the pay and drop the attitude and maybe you'll have someone wanting to work for you.
Forget learning, no one will learn anything from you with that attitude.