How do i let go of friends?

Ive always thought of leaving a group of friends because they were… rude and loud. The kinds of people who thought it was funny to throw trash in a crowd or ask people’s snap “as a joke”. I confess they were fun to hang out with though, they were always down for games and made a car ride into a karaoke room but I was the odd ones out. Im the quietest one and… the nicest one (idk how else to word it) I was the one to pick up the trash they left behind, apologize to the people they disturbed and other things that i felt i had to fix. They always had a “i dont care” way of thinking which i morally don’t align with, which is why i wanted to leave.

But i guess it wasnt my choice anyway cuz I was the one excluded from my friend group. After a event where we all hanged out, we had a two-week break, and I focused on work but kept my days open in case they wanted to hang out. I didn't get a single invite, even though I saw they had a sleepover on one of my days off.

After that, I noticed they started forming an inner circle, going on car rides and hangouts without me. Even if it was something I wouldn't usually do, like going to Crumbl(i dont like crumbl… sorry), I still would’ve appreciated the gesture of a invite. I'm still friendly with them though, one of them is in most of my classes and we talk but they also skip in the middle of class to hangout with others in the halls.

I've made new friends and have a lot of fun with them, but I still get jealous when I see my old group hanging out on social media. It reminds me of the old days, and even though it's been months, I'm still not over it. Sometimes, I still want to go to events with them because they're still a fun group to be with. I have a new group of friends, a job and pets im 100% responsible for so im keeping myself busy but i still think of them time to time.

Theres something in me that wants to repair our friendship, should i? Or should i let them go? And how do i let go of friends?