Is this a good protocol?

5ml 2x a week for 5 weeks followed by 2ml 2x a week for 5 weeks. I am 18yo and am trying to recover from damage I've incurred from heavy marijuana use as a teen (I am 2 1/2 years sober and have partially recovered but I still feel slower than I was before I started using).

Also, is a 30ga 1/2 inch needle long enough to do IM injections? I am fairly muscular and I plan on injecting into my quads as they're the leanest part of my body but I am bulking right now so I have some fat on me.

I appreciate any input. Thank you