Why can't I love others?

This may not all apply to you, but in psychology class my teacher says (and I agree with him) that you can't expect others to love you unless you love yourself. The world is a stage and you are a star. You seem to be in a bit of a depression phase, and that's perfectly fine. You seem to be afraid of human relationships, but you shouldn't be because a lone wolf cannot survive nearly as long as a pack. You are only as fragile or as strong (emotionally that is) as you want yourself to be. Why are you repelling having social relationships? A trouble past? Either way your situation can be fixed if you set your mind to it. You talk like life is serious business but truth is it can be light and merry. Helping others is also a good way to take the weight off your own shoulders. Try volunteering. And also I recommend a book called Soul Pancake by Rainn Wilson, you might know him as Dwight from The Office ( now that's a funny show :)