Inb4 "you're a virgin, you don't know a shit about real life" - I'm not.
I am very happy, I'm certain of this - even though I don't drink anything other than wine, I don't smoke, I don't take drugs, I don't have "casual sex". I don't need any sort of "happiness boosters" to be really happy, and I've never thought that someone would need those not to consider his life boring. I have pretty cool life, I'm quite talented (yeah, this sounded pretty narcistic, but I'm just being honest~) and I have fantastic friends. Having sex oftenly surely is a big pleasure, but I simply consider sex something more than just pleasuring myself and my partner using ourselves. So I won't have sex with someone who isn't my girlfriend anymore - and I'm not really starving to have a girlfriend. (No, it's not the "waiting for this one woman". It's rather "waiting to leave my town and get to the place where are some pretty girls", where I'm going in a year. So I've got this year for myself and my friends.
And hell, I've never got bored. Reading books, talking with friends / my brother, playing games with them, watching movies or partying (especially) with my friends / with complete strangers are things I consider entertaining enough not to need to smoke, drink or take drugs just to be happy. (Yeah, I have great imagination, so reading books can really get me out of this world, which is pretty entertaining; even though some of you don't believe books are something more than tools used to torture kids in schools. ..yes, the books used in schools are only useful for torturing. But there are other books, too.)