I didn't have good results with vitex (chaste tree) either. My cycles we're long and I was crazy hormonal.
I tried the maca as well, which wasn't bad but what I found worked for me was kelp tablets (certified organic) and also acupuncture. For me the kelp worked within 2 months, acupuncture was for 5 months.

I'd give the kelp a shot as it balances hormones either way