Just wanted to chime in here...
First, very good thoughts, Kari! I might well have written the exact same narrative. Nicely enunciated!
But beyond all that, HRT, whether from synthetic E or phytoestrogens, is known to cause wide mood swings, ranging from euphoria to depression. In essence, when we begin any form of HRT we are instigating a second puberty. Anyone with a daughter will be familiar with teenage female "drama".

Part of the informed consent information process involves being made aware of this, but when we just start self medicating with PM that information is often neglected.
It is to be expected by anyone tinkering with hormones that they may go through some "dark" days of doubt and depression. That is why counseling with a good gender therapist is recommended and a very good idea.
Speaking personally, Ive had my fair share of tearful gray days since starting all this, and I doubt I am alone. That said, would I go back? No, never. Never.