Remember, that just because you can't get something out of somebody, that doesn't mean that they don't have value to you. You might be surprised, but there are probably people who are friends with you who don't get that much value from your presence, but find you to be a nice person with good intentions and enjoy your company despite of what you have or who you are.

This is important, because the way that you view others will have a strong bearing on how you view yourself. If you think the worst of other people, those same thoughts will be projected onto yourself for thinking them. I know that this sounds weird, and it sounded weird to me too when I first heard it. It was something that I learnt accidentally. And it is now something that I believe to be the truth, despite that I didn't initially.