Help! Insomnia is ruining my college experience

Help. I am a 21 year old college transfer and I am living on my own for the first time in a dorm 3 hours away from home and on top of everything already wrong with me mentally/physically I have major insomnia as well. Tonight is the night before classes start and ik i’m nervous and all but i’ve been here for 3 days and in the 3 day span I have not been able to sleep more than 6 and that’s with taking melatonin, multiple of my .5 mg Xanax, CBD oil, etc… Shit tonight I even took them all 30 minutes before bed and then followed another Xanax as I was tossing and turning 2 hours later to just knock me out and then popped my airpods in to try and see if brown noise will do it I have a major all day class load with am, pm, and night classes and I was even gonna try to restart my gym routine tomorrow (obviously can’t do that now) and i’m not trying to be irrational in my thinking but i’m tired as fuck and nothing is working and it’s getting to the point where i’m highly considering packing up and going home which i’m seriously trying to avoid because the last school I was at was a commuter campus that didn’t offer what K wanted to study and that is the last place I would want to go back to I’m not at all interested in being medicated any further as i’m already a full on drug cocktail with all the shit i’m taking to stay alive in general but I don’t know what to do at this point and i’m exhausted as fuck and this lack of sleep shit is very negatively impacting my emotional state