It started with depression for me when I was 13 or 14. I think I may have alternated between depression and mixed episodes until I was 17. Then I was hypomanic until around when I got pregnant with my son at 19. I may have had a brief period of normal mood somewhere between the depression and hypomania. Cycled another time or two after that. Didn't get diagnosed until 26 when I sought help after a really really bad mixed episode.