I just broke up an 8 year friendship

I broke up a long time friendship. I'm not a good person or friend and I didn't want to be a burden on them anymore. They weren't mad at me at all and I think they blame themself for it because I told them why I was a bad friend (opinions of them and manipulation etc) I said I found everyone boring and didn't care for anyone. They already thought they were boring and I feel awful. I just want them to have better friends than me because of this. I just want them to be happy without me. I just want to be alone and not hurt anybody anymore. I'm not good for them and I want them to just not care about me like how I don't care about anyone else. I hate myself. I don't know what to do.