Hi,
Don't drink either, uni is isolating especially when you don't partake in the alcohol scene. Have you tried making friends outside of uni? Volunteer somewhere, join a book club, just interact with more people in general.
I find that I meet so many fun strangers in controlled environments (volunteering or courses). You could start taking up a hobby you're interested in by joining a group class. This tends to curb the price a bit and promotes socialisation.
Just remember you're in your last year of uni, not life. Some people take longer than others to integrate or acclimate to new situations. I've heard so many stories of socially successful individuals who just couldn't find their uni group because of the drinking thing.
Hope this helps even a little and wishing you a wonderful year!