I have tried, which I know is a bad idea, but I was depressed at the time and trying to feel better. I skipped meds, stayed awake a couple days, and drank a lot of coffee. I don't think it was really hypomania, but it did induce a strange kind of mental state. Anyways, i stopped trying after a couple days, and it took a few days to feel normal again. I was lucky that i didn't end up getting really sick, or doing anything super dangerous or risky. I think that by the time i'm considering doing that things are already going badly. But I totally understand wanting to.