what blood tests should i order?

going to the doctor soon i'm wondering if there's any kind of blood test i should order specifically for cognitive issues i don't have any sexual symptoms but any what this is what i've gathered so far

magnesium rbc

allopregnanolone

methylation

full hormone panel done

total and free testosterone

dht

e2 sensitive

shbg

steroid panal?

Homocysteine