Im 17 and a virgin, but for the last 9 months I haven't had a period. The last two months I had a little spotting but this month it full on bleeding. I thought I had finally gotten my period back, but it's been about 15 days and I haven't stopped bleeding. I don't know what is happening and its really messing with my panic disorder and my sleep.

Are you taking medications?
Have you had your thyroid checked?
Have you had ultrasound to look for fibroids or pcos or endometriosis?
Is it difficult to see your doctor?
You NEED to see a doctor soon, if you are bleeding this much.

Panic, lose sleep, have a panic attack... no.

Should you talk to your mother (if possible) and arrange a doctors visit, yes.