I think there's something wrong with me
What do you think is wrong with you?
I'm afraid of failure and I've alienated my friends.
Most people feel that there's something wrong with them from time to time, and it's important to be able to discern whether you have a genuine problem. If you feel like something is wrong with you and you don't know how to fix it, then it may be a good idea to seek professional help. If you ignore your problem, you may continue to alienate people.
I don't really care for other people anyway.
It sounds like you're having a difficult time. Even if you don't like other people, it's important to be considerate and not alienate them.