Hey Norah - welcome!!
There are lots of great people here, and everyone will, of course, be happy to share our stories with you! You can read lots about everyone's successes and failures and everything in between... and ask as many questions as you like and it's really a wonderful community. You found the right place!
I would like to make one suggestion though? Not that long ago I was sort of where you were... only a bit deeper (in that I was married for nearly 30 years when I decided it was time). And the single best decision I made in this whole process was starting by connecting with a gender therapist.
I spent time understand MYSELF. Learning to forgive myself for all of this... to make all the disparate pieces of my life fit into the narrative that so clearly show that I was born trans, and dealing with this in one way or another since my earliest memories. Your journey, of course, will be different.
However, my point is - once I got THAT part accomplished, I spent time on the biggest thing, how/when to tell my wife. You only get ONE chance to have the biggest conversation of your life. So doesn't it make sense to do everything you can to prepare as much as you possibly can and give yourself the best possible chance of a positive outcome? There's obviously never a guarantee of anything... but if you have spent time with a therapist understanding yourself and preparing for the moment, at least you'll know you did everything within your power to give you the best chance of succeeding... and to make the event as comfortable and loving for your wife as you could.
I know that's a lot to take in, and I know how excited you are ... there's a thrilling nature to having decided that you're ready and wanting the rest of your life to start tomorrow. But all I am humbly suggesting is that maybe consider having what I mentioned be how you take that first step!
Welcome to the community! Hope to see you around!!
Love,
Allie