I'm 17 Years Old And Have Been Using Crystal Meth

I'm 17 years old and have been using crystal meth for about 5 months. I work 30 hours a week at a fast food place. So I started using this stuff. It makes me less stressed and more awake. My grades have went up highly and i Have made a lot of more friends. I lost 20 pounds and people like me more now.
I usually do 1 or 2 very small lines daily. Just enough to wake me up. But after a few days I'll take a break for a while I'm very tired and sleep a lot for 2 days and then I feel fine and I never crave it. If I continue to space out my uses and limit myself on how much I do will I be okay?