I feel like I'm avoiding myself. How do I confront myself?

I’ve been in relationships for most of the last 7 years. Whenever I’m not in one; I distract myself with friends I don’t really enjoy being around, books, movies, TV, internet, or I just sleep a lot. I feel like I’m avoiding the only thing that can actually make me happy, which is myself. At least, that’s what everyone says. I don’t know how to make myself happy, though. It’s not as if I’m actually happier when in a relationship. I’ve never been with a girl who could keep up with me, mentally. I’ve just always been distracted while in a relationship, if that makes sense. I’m tired of looking for happiness in others. Even my friends are disappointing. All I have is me and I want to figure out how to make the most of it. I’m starting at a community college in the fall to get started on my career and all that, but even that doesn’t excite me. I’m not interested in always having money and things, if I can’t be happy when I get them. Yes, I’ve seen a therapist and been on medication, but those can’t cure perspective. I feel like if I were dumb, I’d be happy, but I’m too aware to be pacified by the massive melancholy stupidity of this culture. This may seem to have gone off topic, but it’s still the question of happiness. If it’s inside me instead of outside, how do I find it?