I've been having some personal issues recently, I deal with a "Mental Illness" called Delirium, the textbook definition is: an acutely disturbed state of mind that occurs in fever, intoxication, and other disorders and is characterized by restlessness, illusions, and incoherence of thought and speech.
and it's set on by PTSD, Basically anything that reminds me of what happened is a kick in the head and it becomes extremely hard to function, usually ending in not being able to stand, aggression and further issues. This has been a big issue for me primarily because ever since a year ago I started going to bars and drinking, this generally can lead to Delirium attacks because the bars around here are full of college kids so there's almost always a fight at some point and usually my Delirium will kick in pretty quickly and I will instantly jump in. This has caused a lot of issues especially physically and mentally, so I'm just wondering if anyone with a past of fighting might know any tricks to keeping calm in situations like this.

Has this been legitimately diagnosed? If so, you should be going to those doctors / therapists / etc. asking for their advice, not that of random strangers on the internet. There are some disorders that the general populace can give advice on, but this isn't one of them.

Believe it or not I have, I take the medication they recommend and most of the time it helps, but sometimes it's just not enough. and yes it has been diagnosed by my doctor.