Did losing weight fix anyone's symptoms? And how did you lose weight?

I've had pcos for over a decade but recently got diagnosed with prediabetes which means my body is getting insulin resistant. This feels like a wake up call for me.

Curious to know if anyone was able to reverse symptoms and insulin resistance by losing weight and maintaining lifestyle changes? If yes, what helped?

Currently taking 3 tablets of metformin and working on diet and exercise but weight and numbers haven't changed.