Ok that was a little rough, sure but here are the facts! I am an old man and you are a young kid. I have kids and if they did something like this than that is the way I would talk to them. It's not america, it's old man talking to young boy!
You are too young to use steroids, you already proved that buy using the wrong needle! Slow down with thinking this is what is the best for you.
Do your self a favor and read about the 24-30 year olds on this site that did some cycles and now are looking at having to inject test. into their bodies for the rest of their lives! Do you really want to be like that? Its not cool and no chick will think its cool when the see you having to stick a needle in your but once a week for the rest of your life. Also it may mess up your ability to have kids! Do you want to have kids? And hard ons, do you like those? Some steroids will end your ability to get a hard on. Do you know which one is the worst for this?
Look, just do a lot of research before you put something in your body you have no idea what other changes are going to happen. What are you going to do if you nipples get puffy?
Please think!
That is all and good luck!