How old are you?
Your lifestyle is going to take you down the toilet.
You'll have to do more and more extreme sex acts to excite yourself.
Think bathhouses 1970's leading up to the HIV epidemic. I had an Uncle that lived that lifestyle and died of AIDS in the early 90's.
Don't get yourself mixed up with this garbage, you need to call it quits and clear your head.
As for Oral sex: Gonorrhea, HPV, Herpes, Syphilis, even HIV if you have your dick in a mouth with bleeding gums.
Male on Male sex is by far the most dangerous form of sex there is.