Before blindly following doctors. Learn everything about TRT from channel below yourself:

https://www.youtube.com/@TRTandHormoneOptimization/playlists

Doctors are horrible when it comes to TRT.
Don't play play simply listen to some doctor.
The Nebido thing is a horrible protocol.
A proper usual protocol is 125mg Testosterone Enanthate/week.
If horrible things such as gynecomastia or cystic acne scarring happen from the crappy Nebido protocol (4ml in 1 shot), the doctor will just wash hands. You will bear the thousands to repair the scarring/gyno surgery.

Pharmacy Grade Testosterone can be gotten from Thailand/India over the counter for fraction of price what these doctors will charge you, fully legal.