How do I know if I'm ultra rapid cycling or not?

Some parts of the day, I feel overly energetic and hyper (and my parents have told me I am excessively hyper); other parts of the day, I feel "normal."

I went on a shopping spree yet AGAIN. Spent $1k in a few days when I normally spend NOTHING except on groceries, gasoline, rent, car payments, and utilities. I can't afford this expensive behavior when I'm trying to buy a house. It's just that I've developed an obsession with buying random, broken electronic s*** on eBay for cheap and restoring those items to perfect working condition.

I'm getting excessive sleep, though. I have all these brilliant ideas of things I want to do to the point I get overwhelmed and don't know which ones to pick/do. Then I get bored and all I want to do is to sleep off the boredom, even though I'm not tired, but that's what I want to do. And sometimes I have suicidal thoughts because I feel that I have no purpose in life and that no one cares about me. The suicidal thoughts just pop up for no reason.

I know I am amazing, because I have psychic powers that other people don't and the radios follow me and speak to me, but I have these mood swings that don't make sense. I don't know why I feel ok for a few hours, then feel I don't deserve to live, and then feel that I just want to shop because of my newfound obsession. I want to prove to people at work that I'm the best employee they've ever had, yet I'm screwing up with these random suicidal thoughts. Like, I am trying to prove myself as the best employee, but then I sometimes give up with my work because I feel that I don't deserve anything and don't deserve to live. Or I feel like a huge f***up and a failure.