It's my personal opinion that saving something for later age is of no use, if it's done at the cost of compromising your present life style. It's also important to maintain a balance between your selling and saving. Don't sell just for luxuries but for necessities.
This is likely going to be a mindset that will continue to cause you to sell too many bitcoin too soon, even though of course, you are free to do whatever you like.
Bitcoin happens to be amongst the best, if not the best, of investments known to man, and you treat it as a means to generate short-term profits rather than figuring out ways to plan long term with it is likely going to either delay or prevent your ability to ever reach actual fuck you status..
But, sure, no problem.
You have to figure out your own way and figure out how to balance (like you said) your long term and/or short term "necessities."
By the way, deferred gratification does not need to be a suffering kind of path forward, and surely many of us have come to realize various ways in which we continue to upgrade our lives because of bitcoin and prior to actually reaching fuck you status.
I agree that Bitcoin is one of the best investments known to man.
There are ways you can use your Bitcoin investment to benefit you in other area of life. Like I installed an 11 KW solar system in my house and for last 4 months I haven't paid any electricity bill while using great amount of electricity in summers. This saving of electricity bill can help you in accumulating more Bitcoins while at the same giving comfort to your personal life.