My only friend group hates me and i don't know what to do

My bestfriend just informed me about a sort of support group moment with our friend group, in which all of them basically ended up saying they dislike me. Like, none of them like me. I've been actively making an effort to be more likeable to them because I knew there were problems, but it seems like all of that was for naught.

They aren't going to kick me from the group because none of them are confrontational. I don't know what to do. Aside from my bestfriend, they're the only group of people I interact with. I keep trying to make friends, but somehow I can't manage to hold onto anyone for long, let alone actually like others.

I messed up, a lot. And I've been trying to make up for it and become a more agreeable person. Many of the reasons for them to dislike me is because of how blunt I am about grievances about them that they don't need to hear. In a fit of rage, I even called one of them a slur.

I don't want to leave, and they aren't going to change their behavior about me, but I genuinely have no idea what to do. I worry that if I leave, I will rely too much on my bestfriend again, like I did in previous years.

It's so... crushing. Almost nobody that I interact with likes me. I keep fucking up. I keep saying shit that they don't wanna hear. I keep being mean. I keep hurting feelings. I keep inserting myself into things I'm not part of. I keep being inconsiderate about how they feel. This is my fault. I have almost nobody else.

I fumbled the bag.

I worry that I will end up isolating myself and slipping into depression, as I constantly question my own likeability and the fact that my friend pool is so thin. This basically confirms my fears.

None of them know that I know about what occurred, but I don't know how to move on from this. I'm really lost and hurt, but I know I brought this upon myself.

What do I do?