TTC w/ PCOS

Hey everyone. So my husband and I are currently TTC and have been for 6 months but it has been extremely difficult due to me having PCOS. My doctor advised us that if I lose 10-15 lbs that I could start ovulating on my own, but she wants me to lose 40-50lbs before I get pregnant as to not have such a high chance of a high risk pregnancy. With PCOS it is EXTREMELY hard for me to lose weight no matter what I try. I wanted to come on here and reach out to see if there are any ladies out there struggling with the same thing that could give me some options that might help as weight loss meds/diabetes meds are too expensive at this time. Any suggestions on losing weight with PCOS?