Humans as a species crave order. Everything needs to make sense to them. There is a perception of control that humans seem to desire. We want to exert control of our environment and produce desired results. A good example of this would be in humanity’s desire to create time and mark time.

Try to imagine a life without timekeeping. You probably can’t. You know the month, the year, the day of the week. There is a clock on your wall or the dashboard of your car. You have a schedule, a calendar, a time for dinner or a movie. Yet all around you, timekeeping is ignored. Birds are not late. A dog does not check its watch. Deer do not fret over passing birthdays. an alone measures time. Man alone chimes the hour. And, because of this, man alone suffers a paralyzing fear that no other creature endures. A fear of time running out.
― Mitch Albom, The Time Keeper
It’s crazy when you think about it time is simply the “measurement” of persistence. For something so tenuous and amorphous it seems foolish to give it so much value.
Most founders of companies (yes including startups) are actually in their 40’s. You may get a little discouraged because you hear about the 20 year old starting a business or a family but do not get discouraged time is nothing but a weird made up number and you are doing great.
The only real time you have anyways is right now, so do the best you can with what you have, where and when you are.