PLZ HELP ,ME ASAP. I NEED IT.

Hi ladies so I am 12 years young and started my very first period Febuary 5th and ended Febuary 12th because I ended a day or two after the superbowl. I have not had one since and the average time frame between periods is about 26 days...well I am at least more than 45. I am kinda scared. I went to the doctor a while back because it felt like my appendix had burst but she said I had an ovarian cyst. Is the ovarian cyst keeping me from having it? Are my periods funky because it is only my second one? Please try to help me as best as you can. Thank you in advance to those of you who help me.

THANK YOU ALL FOR YOUR HELP

YALL ARE AWESOME