Unless you are some genetic abnormality, most likely your T is more than normal. Check it again exactly at 7 am after a good nights sleep. It will be higher. Chances are you have boy image issues, or anxiety around erection such as size of your penis, lasting longer etc. All that has killed your boner. Unless you have taken some medications or done anything major with your hormone system you need to get over your mental stuff.
I read somewhere that even castrated eunuchs can have erections. there is no reason that you cant have erections at those level. Also TRT is not a cure to libido and erection issues. Since 99% of this is mental TRT will not solve it. You will just be a little muscular and hornier without being able to get it up.