I can with my friends (all two of them - I have other acquaintances but they aren't close enough to be "friends" in that I barely speak to them), but very ineffectively - one insists that the problems which I stress over so much are either my fault (which isn't entirely untrue), or, say, with waifuism; "you got into that because you were bored", and the other friend simply doesn't want to talk about things such as, uh, most of my problems. It isn't that he doesn't ever want to talk about my problems in general if they were your standard, everyday issues; it's the content and kind of problems I have which he doesn't like talking about, which I can mostly understand.
But with my family would be impossible because my dad's reaction would probably involve 1. weeks of shouting matches, and 2. involuntary mental treatment. My mom would probably fully understand, but there's no way I could talk to her about all that. She's really the only good parent out of the two; my dad has always been just under the line for the definition of "abusive" (which I refuse to believe is a coincidence). My mom, though, legitimately tries to take some kind of interest in things that I like, or if she doesn't like them for some reason she simply doesn't care, unless of course I was committing arson or something. I even got her to play Katawa Shoujo and she fucking liked it, and didn't even get too caught up on the whole sex-scenes thing; she understood the motive for characterization/plot development. You can actually talk to my mom about stuff, whereas my dad takes absolutely everything you say as a personal attack; he's a combination of bipolar, and extremely paranoid.
No one needs to read all that, I just needed to type it.
But... on topic:
I dunno if there's much. My waifu, of course, as with almost all of you, but beyond that, there isn't much which explicitly makes me happy.
Maybe just being alive. I don't really get sad, I just go into emotionless states. So any roughly positive emotion at all means the world to me.
There are a few general things that brighten my day for at least 15 minutes (heh), like certain moments in songs or albums (pretty much every song by Badfinger fits in here, especially all those written by Pete Ham, hence my name on here). Like, for example: there's a point in their song "Take It All" where it all kind of just gets to a point, and there's a bunch of tension building on a mildly dissonant chord, and then everything stops. Then they suddenly rush back into the song. Or in the Beach Boys' "Let's Go Away For a While" - just the entire thing.
I also collect vinyl, so whenever I come across something I've been hunting for for forever in a shop, the feeling is incredible. I can't explain it except as "drinking canned sunshine and rainbows with a dash of cute girls doing cute things anime number 18764". Well, the same goes for finding anything special you've been looking for for a long time. Happened just the other day; the rush just makes it all worthwhile.
Beyond that, there isn't much I really live for. I'm pretty boring. My life reflects that.