Best way to increase LH is trying clomid or novaldex. This can also confirm if you are secondary.
My Dr at the beginning put me on 25 mg eod. No arimidex/anastrozole. After 8 weeks check total t free t ,estradiol , LH , fsh . If the clomid raises t and free t you can taper that off to see if you maintain levels.
At your age clomid def worth a try.
Also for your leisure reading…