TIME TO EAT THE DONUTS?

At what point do you stop caring? 60? 70? 80? Please tell me it's before 80. My grandmother was incredibly vain up until her very last day which was 97. While I give her unbelievable credit for having the energy to get "done" every single day (she had her hair done the day she passed away), I also find it incredibly depressing. I look forward to a time when I can eat dessert morning, noon and night and not care about whether I'll fit in my skinny jeans or rot my teeth. I'm trying to pass on dessert now so I can live longer and then never pass on it again. But maybe I'm missing the point. Maybe we all are. Maybe I should be eating dessert every single day NOW. Who knows if I'll even make it to 90 (for the record I'm actually hoping I can stop caring at like 70). But if I never make it to that glorious, dozen donut eating a day time... will I be disappointed that I didn't indulge while I had the chance?