I’m 16, my period cycle is 55 days, is it normal?

I’m 16 and my period cycle has been about 55 days for the past year. First I didn’t think anything about it (mostly because I liked not having my period as often), but now i’m concerned that it might hurt me in some way… Like making me unable to have children in the future. So my questions are, is it normal at my age? If it isn’t normal, then what is happening? Is it something I can fix on my own or do I need to go to my doctor? And will it affect me having children in the future?

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