Hello there, sorry to hear about your troubles.

I developed the same issues such as yours (no finasteride use tho) at about your age , so I can be empathetic.

Well, about the propecia, I must say I've read about many young ppl taking the drug in their late teens/young adult years in order to save their hair, and for obscure reasons develop low T in their 20s, yet nothing is to be found about in medical literature (more of a conjecture of mine, really).

It's not that LH is low but your yes total T levels are kinda poor for your age, but what got my eye most is your DHT, which appears to be in the gutter. DHT is actually what makes a man a man and it's the key mediator for brain benefits of Testosterone, that including sharpness/focus, calmness and sociability (social anxiety is common with low T), and of course, sex drive.

Symptoms could also be from low E2. That is the main estrogen in the system. It's derived from T in the testes and peripheral tissue such as adipose. We men need some to function, not that much, but it's an important factor in overall endocrine functioning.

If you want to try the TRT route, know that many GPs and unfortunately even endos lack insight into the matter, and don't really know how to threat patients, but we can help you there. Stick around and take your time to learn so that your can make an informed decision.