I even have to watch when he hangs out with his friends because they are very much into cocaine, strip clubs, and even inviting strippers/prostitutes to their apartments! While I don't think he would ever be involved with that, I still get very angry when he hangs out with friends.

That is a red flag !

If you can't trust him then you need to let him go or your both going to be fighting all the time .
It's not even about controlling it's abut trust at this point .