You will create for yourself the best of all possible worlds.
I guess it all depends on how you define things. As far as it goes, this is one my favorite iterations of things, regardless of whether or not things repeat endlessly like I suspect that they do. It's all a question of observation. The only things that matter in this, or any, universe are what we observe, so if the things we observe in this universe make us happy, then what does it matter whatever else may happen? This universe will be filled with nothing but what makes us happy, and what better possibility is there in life than for us to be universally happy?
There is really no probable outcome better than for us to enjoy the simple pleasure of a sunny day spent basking in the lazy heat of a sun that wishes us nothing but complacency. If you ask me, I recommend not questioning it, but rather enjoying it with the pure guilelessness of a child who doesn't know enough to ask whether or not the goodness of today will last, but instead asks only if they can stay out a little longer before dinner.
After all, what in this or any universe can be more important?