Help How to do Intramuscular Injection properly?

[Caribbean Sky]

I've been instructed on this pretty well and I think I got it down. But now I fear my test injections of fentanyl are actually subcutaneous on accident.
I am trying to do it in muscle, my bicep. i am female but i have an athletic build, even though im weak and sick now.

how do I actually do this right so I don't mess up? instruct me in detail please.

 

[lunarflower]

Outer thigh is pretty easy if you're injecting yourself. I find sitting down and kind of bunching the muscle up with one hand and injecting with the other works well

 

[ferrie]

Please don't get medical advice from a forum. Not everyone who responds will actually know what they're talking about. IM injections are fairly simple, but instruction through text is iffy. Improper injections or injecting fentanyl that contains xylazine can cause necrosis