help with pcos..

Ashleigh • Married to my best friend. We have a 6 year old son, 1 miscarriage and currently ttc our rainbow baby 🌈👶🏻
I was diagnosed in April with mild PCOS. I'm taking 1000mg Metformin ER (Extended Release). And have been taking it religiously since April. My cycles are still very irregular. (Anywhere from 40-90ish days). I'm currently on cd 64. 
Anyway.. my fertility specialist wants us to continue trying on our own for another 6-12 months. I'm looking into the fair haven fertility supplements such as ovaboost, fertilaid, myo insitol and fertile CM. Does anyone have any success stories with those? 
Or what other vitamins do you ladies take with PCOS that you've noticed a difference with? Even if it's just something to regulate your cycle. Pros, cons, etc? 
Thanks in advance. I'm pretty desperate 😊