Not to bum everyone out, but I'm pretty sure my dad didn't plan on getting diagnosed with a terminal illness right before I left for college.
Deferred gratification is important, but if it isn't balanced by an effort to make life enjoyable along the way then it is pointless. Even if you live a long life, it won't be happy if you aren't don't make efforts to pursue your own happiness.
My dad made plans for a retirement that didn't really come, he got to enjoy his years along the way. I am doing the same.