First of all I am happy to read about your current position in life. Being debt free is the biggest stress reliever. Going through the difficult time periods of life make us really appreciate the things when we start receiving them. I am sure it must have never been easy for you to deal with all of that. In today's time, even if we do not give much importance to money then too money is important and our whole life operates on that. And with health issues to deal with, it's all the more important to have it.
Very kind of your friend to gift you BTC, not many people would do that. And your wife has truly been an excellent partner to give you support in all of this. Again in today's time, where there is barely any value for relationships, having such a partner is a blessing.
I believe in one thing, no matter however bad the situation is, it is never permanent and with that hope one must keep moving ahead in life with positive attitude, which you have surely done.
Wish you all the very best with your driving licence, I am sure after all that you have gone through, this is not much of a thing to stress out on.