I think you might be stuck at the Love/Belonging state of the Maslow Pyramid, which is not bad as you're only one step away from the Esteem state.

In my opinion you should try and reinforce the things you already have, like getting more in touch with your friends and family, and if you have a partner work on a better sexual intimacy. If you're lacking one of the things I already mentioned you should try and focus in obtaining those things. In any case what I mentioned would improve your possibilities of obtaining achievements, which will eventually lead you to attain more confidence, thus boosting your self-esteem.

It's likely that after this the depression will go away on its own, giving room for happiness in your life.