What is happening to my social life EURGH?

basically, when I am at school everyone talks to me and gets along with me I make people laugh al that, i used to hang around with some people but they never wanted to go out drinking and stuff like everyone else and myself like to do, so I starting hanging out with new people for the first like year or so I got invited out al the time but then I started smokin weed and i still got invited out i dont do it infront of my friends except one who also does it band i dont alk about it to them but they seem to have drifted away from me and i dunno what to do D: