well if it helps you any, i had this problem since i was about 16. i am 31 now and only have they discovered what you know at your age. until 16 i had normal erections, but after that, i never got morning wood except on a few rare occasions. all of my adult life i have been using ED drugs, which have always worked for me. 45 is definitely depleted, not that 200 isn't (that's where i am).
my advice is start the TRT, without it you will never have a normal life. have you even tried Clomid yet? its what the doctor perscribed me, if you search on here you'll find others who use it too. its a first resort drug for secondary hypogonadasm. i have taken it for the past two months and it has helped in terms of strength but no improvement yet in ED.
have you had a karotype test done? this can rule out genetic conditions that cause our symptoms. i myself have not yet had one, hoping to get it done in september when i may also start TRT therapy depending if Clomid is more effective by then.
by only concern about trt is that it can cause fertility problems, but they can take sperm and put it in a sperm bank. the way i see it, those health risks are there either way (with trt or with low t). i would rather take my chances on TRT, life has become terrible with this condition and there is no hope without TRT.