aspirate

I just injected .5cc 1nch into my quad and when I aspirated i only saw air. After injecting I pushed hard on the plunger to make sure all the testosterone got in me. When I pulled out I noticed the entire hub was full of blood. Did I inject into a vein or vessel? If so is this a wasted shot I...

I just did my 4th self injection today. I have been using a 23 gauge 1.5" needle and I keep telling myself that this needle is way to long. Im 6'1" 225 athletic build besides the pot belly. I have tried the 1 inch needle but worried to much about it not going deep enough into the muscle. Well...