If you don’t want to drink, that’s totally fine and entirely your choice. It’s not for everyone and some people simply should not consume alcohol (eg, those with a history of substance abuse problems or anger issues).
But having fun at parties with alcohol is a pretty typical part of growing up. There’s a middle ground between “staying home alone” vs “dying prematurely”. You can drink enough to have fun without it being at risk of killing you. It’s not healthy to bing drink, to be clear, but personally, I found it worth it every now and then to have some good times with friends. Just be mindful of your limits, hangout with people you trust, and always have a sober ride home.