learn how to appreciate every moment of life by treating every day/hour as another gift from Hashem that you should live another hour/day. Hashem doesn’t just say this person will live to 113 & this one to 102 etc… every day is another gezeira that you should live another day “uvacharta bachaim…. you should choose life” & spend your time of life wisely. Wisely does not need to mean learning & doing mitzvos 24-7, going shopping is also spending your time wisely. just don’t waste it & soon you will start to appreciate every minute more that you are alive that YOU WILL NOT LET YOUR TIME BE WASTED doing nothing.
Dont wait until your 60-as most people do-before realizing & not believing that 60 years of my precious life are gone gone forever…. even if your 40 you still have 20 more years of your full life (where a person can do everything from 20-60 before starting old age & stopping doing things as a person gets older & older every year) to use it wisely
Hatzlacha