i think im starting to hate my friends

Hi, this is a throwaway account because my friends know my actual account but I think I'm starting to hate my friends. Coming to university, I was leaving a huge friend group so naturally coming to university, I also ended up making another large friend group. At first, I loved my friends and I still do. Recently, I noticed that they aren't really my friends... school friends at best. They never come out to support me unless it benefits them, they don't care about how I feel nor do they ever check up on me. I value my friendships with them a lot and I make it a priority to check up on them, go to their events and be there for them whenever they need help. It just really sucks when it feels like I'm being left out or that they don't actually care. Sure you can suggest I have a talk with them but I have and they just make up excuses as to why they don't come out to events to support me. I honestly don't know what to do anymore and I feel like I have no one else to turn to since all of my friends have turned into this one big friend group. I want to make new friends but it seems everyone already has their own set of friends and there's no point in even trying at the point.

Anyways, if you've experienced anything like this, any advice or wisdom would be appreciated.