I can't sleep more than 2 h last night, i can't have a nap today. now it's 6pm but i feel full of energy.is it hypomania ? what can i do to get tired?

Hypomania or just: An off 24 hour cycle? If this continues beyond a couple of days- would seek medical evaluation. Hypomania is often associated with rapid thoughts, rapid streams of ideas at one time, rapid speech, ^ need to socialize, ^ productivity, restlessness, ^ risk taking, ^ sex drive, etc.

Need an Eval: It's hard to say. Your best bet is to rule out any medical conditions with you doctor. If further evaluation is needed, get a diagnostic psychological evaluation.