I need to lose 130lbs to be healthy...PCOS

Hello,
I was here before years ago. I am back with a goal in mind. I want to be able to have a baby and be healthy.
With my PCOS and my weight I am trying to lessen the odds. So the weight has to go!!!! I am at 325.4 and my doctor wants me at 200lbs!
Thanks for the support!