Fucked up week so far... am i crazy?

on sunday night i got pulled over with 5 54mg concerta and 2 2mg xanax. of course i ate them all. i didn't get searched or anything... got my ticket and went. that night, i wrote a paper for 8 hours almost non-stop. the next day i got a gram of coke to stay up for class because i hadn't slept. i ended up splitting it with someone in 40 minutes. later that night he busted out 2 more g's and we did it all by 3:30pm so 1.5 each in 12 hours. after that, he gave me 100mg of ceroquel (SP?) i slept for 30 hours straight minus once to shit, and once because i had horrible leg cramps and fever chills. so now it's wed. and all i did was smoke tonight, but earlier i was honestly convinced 100% that i was out of my mind. i don't think it was a bad high type thing from weed though.... wasn't quite like the one i had before... more real i guess. i'm pretty good about maintaining rational and logical mind frames while doing drugs. i should also mention that i'm no novice with any of the aforementioned drugs, and that i've had bouts with all o f them at different times over the last four years. i'm 18 and i live in dorms. also, on the day i did the coke i was so unbelievably angry i couldn't see straight, which is why i did it (dumb, i know).. the anger was over nothing specific, and being at college has been really stressful. see how i ramble too though? i dont usually do that. if i'm crazy or should get help i'd like to know. i'd like to think im just feeling all cracked out from the odd mix of drugs i've had in the last 3 days. i just don't know what to make of it, and i know this isn't really the place to go for psychological help too, but ive talked to 3 of my friends from back home about it. overall answer was no, but that i've always been kind of paranoid.