I was just diagnosed with POF and I'm just not handling it very well. I just feel like I'm mourning my dream of ever becoming a mom.
You are in mourning because loss of a dream, is still loss, is still important. You need to be able to feel the freedom to grieve the way you need to. Hugs and support to you!
There may be other ways you can become a mother, maybe just not conventionally! Don't give up on that dream just yet, but do take time to digest the news in a healthy way to accept it. After you have, explore your options! :)