Has anyone tried these?

Has anyone tried any of these? ZMA, Bernerine, Zinc, Vitamin B12 and Vitamin D?

ZMA is a test booster, Berberine raises SHBG, Zinc is supposed to raise test?

My testosterone levels are low for my age. (400, 26yo). I feel so bad I thought it might be worth a try to increase it and see what happens.

To me PFS has to either be a hormonal problem or a neurosteroid issue