Bica is trash, and should only be used if monotherapy isn't enough for some reason (same as spironolactone and cpa) and only in a small dose (12.5-15mg/day). If you want to do it correctly, taper off it and take your blood tests after month w/o it, cause it makes blood tests useless when included and there's a high chance you don't need it at all.
Levels needed for mono are:
LH<0.5 iu/l. It shows if your HPG axis it still intact or, simplier, if your testies are still making test.
SHBG≈80-115 nmol/l. Basically works like AA and binds to free T, preventing half of it from interacting with receptor. You dont need more than 115 tho, cause it binds to free E also (less effectively, but still), especially if your T is already low, which it should be (T≈10-45ng/dl is needed).
E2≈250-350 pg/ml. You dont need more in most cases, cause its enough to obliterate your LH and more E=more SHBG, which is counterproductive.
If, even with these levels, you feel smth is off, you should also check your DHEA-S (and 17-OH progesterone if needed) to see if your adrenal gland is mb enlarged and makes too much androgens and 3α-Androstanediol (another androgen). Thyroid panel might help too.
If any of these androgens will be elevated and your main panels (CMP, CBC, lipids) are healthy, you'll get the permision to use Bica. GL.