my adivce is to stop with the party for a wile. not quit, just take a break.
then, if you still want to hang with these people, then hang. its kinda of a queston of "i like hanging with these people because i like them" or "i like hanging with these people because i like getiing fucked up"
way back in the day, i was doing meth. A LOT. after a few months, this one day, i just looked at the people i was hanging with and was like "WHAT THE FUCK AM I DOING HANGING WITH THESE CRAZY FUCKERS?!?!?!" so i stoped the meth and stoped hanging out with them.
now there all in jail. except for one. who i still call a "good friend". i guess what i'm saying is you got to see things with a clear head to get a clear answer...
oh yeah, i made this post while drunk...