I haven't used glow since 2015 I think and would like to use it again. Problem is all.my data is old and I don't have any data from 2015 so it thinks Im late by over 360 days. I don't want to mess up predictions and such if I add data and I can't add the last time I had my period because I can't remember (I'm very irregular)

I would like to clear it all and just start fresh by adding when I get my period again.