Excess androgen? And what to do?

I am an 18 year old male and I believe my body is producing too much androgen. I say so because I have had continuous moderate inflammatory acne for over 4 years, a high sex drive, a lot of hair on the lower part of my body, and, recently discovered, thinning hair.

But I can't grow significant facial hair (though I have a moustache and goatee I want to keep) and I am very skinny. I'm thinking about doing anti-androgen medications, but I want to know how that will affect me. How will t affect facial hair and my frame specifically? Thank you!