Great read. Thanks for sharing and congrats on your success!
I'm in a similar situation. I'm working on a thing and my wife has been supporting me for some time now.
Years ago she told me to leave my job and focus on my thing, but I was afraid. I've been working since I was 19 years old and I have trust issues. It was very difficult for me to believe in myself and jump into the void but I'm 42 and if I don't do it now I will never do it.
Anyway, I'm a couple of months from the first beta launch. I'm happy, anxious, afraid, hopeful... all at the same time. I hope I'll be able to write a similar blog post in a year or two.