Right... Picking out some of the repeated points here so not going to quote specifically.

"I have to walk on eggshells to not offend people." - Well yep, welcome to life and society. This is pretty much the way life goes if you want to be a part of a community. If you're offensive and verbally abusive, even when you feel justified in it, and you do it repeatedly then there are consequences to those actions. It's not that the system is out to get you, personally... It's that the system is attempting to meditate and protect as many people as it can. Unfortunately the system is designed by people and people are imperfect so the system will therefore be imperfect.

"I'm not a hacker/racist/ect." - Has anyone said you are? And do those things qualitatively compare to what you are being disciplined for? If you punch someone in the face does saying "Well I'm not a murderer" make what you did any better? Just because there are worse people out there does not eliminate the fact that you did something wrong.

"I can't control myself." - Well, ultimately you're the only person who can control yourself. Yes, there are conditions that impair you from this... Turrets, schizophrenia, ect. But the issue with those is that, in many cases, those people generally don't even have the capacity to realize they have an issue or are incapable of performing the actions they would need to do to correct it. You have anger issues, a lot people do and it's a difficult thing to deal with. The good part is that, right here and now you are admitting it, you know you have a problem and have difficulties in dealing with it so what you need to realize is that you don't need to face it down alone. There is no shame on seeking help, and there is a lot of help available. Instead of taking this moment as a point of vitriol and discrimination against you, take it as your sign that you need to get that help so you can become a better person in general. You'll be happier, the people around you will be happier and you may find that, in understanding yourself better, you are better able to do all the things you want to do without having to worry what anyone else thinks about you.