Guidance required. Would u suggest then?

On my last query, lot of docs replied asking to continue taking Testosterone Undecanoate 40mg thrice daily as free Testosterone drop from 11.7 ng/dl to 10.7 ng/dl within 20 days is at times expected and nothing to worry about. They suggested a blood test repeated after 8 weeks. One gentleman asked why am I taking Testosterone Undecanoate along with Finasteride, that's cause of low T levels along with Alopecia. There has to be Testosterone for Finasteride to prevent it from getting converted to DHT (not my theory, my GP explained it to me). Another asked why Testosterone Undecanoate at this stage, what would u suggest then? One doc with whom I had paid consultation after my last query has prescribed me Nebido 1000mg Testosterone injection because as per him oral dose I'm on wouldn't help as its not sufficiently bioavailable. One suggested to have B12 injection taken. I'm against injections hence I'd rather take oral lifelong then injections.