I dont know whats wrong with mee! any advice?

well im 13yrs Old now, and i started my period about 3Months Ago, and last month i came on my period on the 19th, and this month, im 3days Late.. but since the last past 2 weeks ive felt, very Down, stressed, depressed, Fedup, and im takeing every thing the wrong way, i think everybody is against me, and ive come Out with aloud of spots all over my face, also ive been haveing trouble sleeping. what is happenin to me, :( ?