I brought menopausal tests and confirmed high fsh levels. I've had no period for 5 months. What are the next steps I'm under a gynaecologist and doctors but because I'm only 23 they don't know what to do next.

I've had an ultrasound and my ovaries etc seem to be fine so no idea why I don't have a period. Could it be because of High FSH levels? And what causes early menopause