Making friends at the end of the year

I am a freshman in college now (female) almost done with my spring semester. For the first semester and the beginning of the second semester I was extremely close with my 3 suitemates and the guys across the hall, I was lucky enough to have a double room but not be assigned a roommate. About 9 of us made up this very tight knit group of friends and I expected to be close with them through college until graduation. We signed up for housing in the fall and I am living with the 3 girls I have lived with since day 1.
Halfway through this spring semester I had a large falling out with everybody and now only a few will even speak to me at all. I pretty much lost everything.
I’m not that good at being outgoing and making friends, I never have been, I only became good friends with everybody because we lived so close and all being freshman who didn’t know anybody else, we all naturally came together.
I really miss having friends and don’t want to spend the rest of my freshman year and go into sophmore year having zero friends and 8 enemies. Especially since I’m living with them all again next year since housing was done in the fall.
I have a couple friends from the club team that I’m a part of but the season is now over and I never became super close with anyone on the team because one of my suitemates was on the team as well so we always just stuck to each other.
Do you guys have any tips or advice or ideas on how I can make some new friends before the year ends, or at least what I can do as soon as I move back in in the fall?