Testosterone- 624 (normal range 250-1000) Bioavailable Testosterone- 256 (72-235)

I’m at a complete loss. I was hoping this would be the culprit of my complete lack of horniness. Now it’s back to square one in trying to fix this. I don’t feel the chemical release in my brain that I used to get when I was horny and I also struggle to have proper erections. Sex is not exciting for me. I’m 33. Maybe it’s a lack of dopamine???