You need zinc as a trace element in your diet. Many multi-vits have trace elements and find one with 25mg zinc, 150mcg iodine and 200mcg selenium.
Estrogen levels can increase if zinc deficient which then lowers T to some extent. If you become zinc sufficient, more does not help, but can then interfere with absorption of some other minerals. 25mg/day is all that you need, food will have some. In UK you can easily be iodine and Vit-D3 deficient.
Many feel awful taking clomid, Nolvadex does not do that. Doctors do not understand.
No one here is going to tell you that zinc solved major issues.
On Clomid do these labs:
FT - probably not in UK