As Long As A I Have Been Aware I Have

as long as a I have been aware I have always been tired all day but cant sleep at night. I used try to take stuff to sleep at night and then a fat burner in the morning.( I don't anymore) my moods change drasticly I cant focus on stuff I move from one task to an other. I been diagnosed with bipolar but the meds don't work could I be missed diagnosed?