I think you're wrong. In acknowledging that you wish to be a good person you're already working towards a path that puts you into a person that you can be proud of. I also think it's very important to realize that everyone is selfish to some degree and mean as well but these sorts of facts about ourselves are not solid and we are always capable of changing them. Slowly yes but they do change. Plus, from what I've seen of you on this forum, I've seen a nice caring individual who is trying hard and having a rough time. So please be a little gentler with yourself. Your depression is really eating away at your emotions ): It's not you.

You are most certainly good enough. If you look closely at your parents they have plenty of faults of their own that you have learned from and are excellent at. Sure you might not think you're good at making meaningful relationships but that just means you haven't had enough practice yet. The only reason why I have some of friends is because a few years ago I gave up feeling embarrassed for trying to talk to people. And the only reason why I succeeded about 15% of the time was because I had had a lot of practice in high school since I'm really extroverted and need friends to survive. I've tried to be friendly recently and I can't do it very well because I'm out of practice. It is difficult to make relationships so don't get yourself down over it. And you have plenty of skills I'm sure so don't let yourself beat yourself up Hell, let yourself brag a little. It's better to have some sort of ego than none at all.