Trev,
You are doing at a young age what a lot of us were not able to do until years later. Even then we have anger issues that as adults we find difficult to control. We certainly don't expect you to find ways to release anger that are any better than ours, or for that matter, even as restrained.
Sometimes anger just blows out and we say things that we might later regret. Sure, it's a good idea to bear in mind that the site feels safer for everyone if we keep our anger from looking like it's personal. But at the end of the day you DO have a lot to be angry about, and that anger DOES have to be expressed one way or another. I like the way Craig puts it: better to vent here than get arrested for starting a fight somewhere.
Much love,
Larry