I am 18 and studying engineering, almost everyone i socialise with are HUGE drinkers. I have never drunk and dont plan to it has never even crossed my mind, as with smoking drugs etc etc.
Nothing about you or your situation seems strange to me, but there is DEFFINATELY nothing wrong with you! Know that there are others much like you and that good friends are hard to find in fact i had none till university. Now i think i can claim one
Seriously give it time as people mature their views may become more like yours and as you enter new situations you will meet many more people, inevitably some will share your views
P.S i have many friends who accept me as i am and respect me even though i am in the minority as a female non-drinking/partying engineer. Being yourself is the only way to go
Nothing about you or your situation seems strange to me, but there is DEFFINATELY nothing wrong with you! Know that there are others much like you and that good friends are hard to find in fact i had none till university. Now i think i can claim one

Seriously give it time as people mature their views may become more like yours and as you enter new situations you will meet many more people, inevitably some will share your views
P.S i have many friends who accept me as i am and respect me even though i am in the minority as a female non-drinking/partying engineer. Being yourself is the only way to go