This pretty much lays it out. It's a life-long commitment, and it shouldn't played with lightly.
I think the biggest problem with TRT is the education level of many of the doctors is staggeringly low. They often are significantly behind the 'bro-science' of the internet.
There are people on the board that will argue the internet 'bro-science' is complete garbage and only clinical trials produce meaningful information. I don't agree. I know in my own industry, there is a large disconnect between what is done in practice and what techniques actually have technical papers written on them. Does that mean what we do in practice is invalid? I suspect not. My take is that the documentation is simple lagging behind what is actually done.
Having said all this, if you can find a good TRT doctor (see stickies) who has a good starting protocol and is willing to listen and work with you as an individual, then you'll be in a much better position. We all respond differently and getting your body dialed can be difficult. However, if you have a little patience and do get it dialed in, it can make a massive difference in your physical and mental well-being.