I think our depression makes us feel so bad that we think nobody cares... but oftentimes that's just the depression/negative thoughts talking. I'm sure people care about you. Maybe when you feel alone you could try to reach out to somebody... people don't know you're not ok unless you let them in.
I think we can make steps at being the people we want to be. Like with anything else, it takes hard work.. but I do think it's possible. If we want something bad enough, we can get it