Aspirating advice needed (made minced meat of inside quad)

So my first injection is done.



Note beforehand: I only inject in my quads. So please only advise on quads now. Thank you.



Things that went well:

- Injection time: I imagined it to be harder to push the plunger and put the oil in the muscle. So that's great.



Things that went wrong:

- Aspirating: I inserted the needle in the outer upper quadrant of my quad of the right leg with my right hand. When I had to aspirate, I used the thumb of the same hand. However I could not manage to pull the plunger back one bit.



I imagined if I'd hit a vessel, blood would've come into the syringe immediately. But since it didn't i started injecting.



My question to you guys:

I need to know if this way of aspirating is sufficient. Or should I really aspirate with both hands and make sure to pull the plunger back so hard that air is coming in. I was not able to manage that with just one hand. And injecting is still a scary business for me as you see.



Thanks guys.

Aspirating advice needed (made minced meat of inside quad)