Jennifer
It all sounds really tough. I'm from the US. I am about to turn 51. I was so clueless or in such denial that I only came to face all this last March. I just had my 25th wedding anniversary with three teen age daughters.
Sounds like you have known for a long time. It also sounds agonizing. I think in ways, it was easier for me before I realized what I am (MTF). Now that I am aware, I find myself mentally returning to the idea of transitioning. I find myself very jealous of genetic females and young trans women who had a chance to change early in life(no hate, just a sadness). However, in general life has light that was lacking before.
When I came out to my wife, she has been incredibly supportive. Although, she said she is not a lesbian I am being allowed to explore to see how far I will have to go to reach a feeling of calm that is more consistent. This sounds kind of similar to what you have described.
I too thought I would never go very far with this because with my age I feel I will not pass. However, the feelings do not go away. Even before I knew what this all was, I was becoming more morose, moody, angry and uncontrollable. I may have to transition farther than I realized to stay with this improved spot I have reached. I have found therapy very helpful. Is that something you are able to do? Writing, visiting this site, being honest with my wife and going to therapy have helped so much. However, I can completely sympathize with the desires and fears of transitioning. Many will tell you that you don't have to completely transition.
I don't have any answers for you. I barely am making some up for myself. I just wish you luck, love, acceptance, and a smooth journey wherever it takes you.
Sorry I am a little scattered. I am just coming off of one of 8 or 9 weeks of the year where I put in a lot of time at work.
With warmth,
Joanna