Recommendations for regulating period after PCOS?

Hey ladies! I've been diagnosed with PCOS since 2017. Let me tell you the last time I got my period was in 2017 around December and I got it 3 days ago thank god. But who here has had PCOS and has made them irregular or what do y'all recommend me to get back to regular? I've gone to the doctor but they want to put me on diabetic medication and I'm really not ready for that since I've heard negative stuff on it. I've gained weight in the last 3 years about 100lbs