Whats wrong with the world. Please help me out here.?

I am 18 and live at home while going to college. Friends I have known since kindergarten and some 8th grade are all now smoking weed and drinking. I have smoked before three times and every time, all it made me feel like was throwing up, i passed out one time, and felt horrible like when i went to the hospital for dehydration.

I have been refusing lately, and each time we seem to grow further apart. Why is the whole world up for quick thrills and cheap laughs, to me that's just ridiculous. The only reason I feel people do this is to make it feel like problems have gone away. Only temporarily of course. Even though they say just to relax man and have a good time. Yeah... Well think a little harder as to why you're doing it. Because it makes you feel like you're in a euphoria and you are having a good time.

To me am perfectly happy and content just hanging out without having to do those things. AND then when you don't people say you're and loser or missing out / not cool. There are to many other fun things i enjoy without having to get high or drink.

I don't get and will probably never get why smoking weed is cool, getting arrested is cool, and drinking to the point of forgetting what happened the night before is awesome. I feel all alone in the world. Am I doing the right things? I'm in the point in life where I have no clue what i'm doing is right. Thank you to anyone who answers.