Too short of a cycle?

Hi! I’m 15 and I’ve had my period for a year, and my cycle has been around 17/23 days and a period lasts about 7 days. I didn’t think of it as abnormal, just I was always annoyed of how SHORT it was. Then some of my friends started saying there cycle was 35+ days and I was shocked! Is there anything I could do to lengthen my cycle?