Rock bottom

I recently developed the silly notion that no matter what happens now, the best is yet to come, in an attempt not to take for granted what I already have. But sometimes I wonder if I would have been happier if things were any other way. If they were better does that mean I would have been happier, or just content because I wouldn't have had to struggle so much? And if they were even worse than they are now, does that mean I would be happier when they got better in the end, or completely strung-out from the fight and realizing too late that it was never worth it in the first place?