You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes but you don't dwell on it. You don't let it have any of your energy or any of your time or any of your space.
Wrinkles should merely indicate where smiles have been.
Anyone who stops learning is old whether at twenty or eighty. Anyone who...
Age is an issue of mind over matter. If you don't mind it doesn't matter.