Anyone else above the influence?

I mean I know school is tough with all the peer pressure, but does anyone else find a way to exclude your self from the parties, drinking, and drugs? It seems like all of my friends have done it, even the people who say they never would. My best friend just smoked weed couple weeks ago, I never thought he would, my other friend was pressured by his older brothers drinking and smoking. And then there are all the other people who I know that just go out and party every week to get drunk and messed up basically. I just don't understand it, I'm like the only one who hasn't done shit. And I'm proud of it. 100% sober and drug free. It just gets hard knowing all of your good friends are now experimenting and you're not because it's not the kind of life i want to live. Can someone relate to this?