Personally, I would buy myself a house by the sea and retired. it's great to be retired and have a lot of money and, of course, health.
Having some good plan in your mind is a very good thing and that this will help you in having a better living ahead. Buying of your own house is a very good idea as this gives you your own shelter to live but you need to make this decision of buying the house only when you are having enough of the bitcoins in your wallet and that you are quite confident that you are taking the right step. Keep your goals higher in your life so that you may be able to live a better living.
If I'd be able to hit my target, I won't stop. It does not mean my journey has ended. I will use this as a podium to help other people, by sharing my blessing to others, and to the community. As long as I'm alive, should I have another goals to formulate next backed up with determination, creativity, and hope as my companion in hitting another goals. Never be afraid to fall and fail, these are all part of progression and triumph.