Don't worry about the Deathbed fallacy.  Don't worry about what some old version of yourself will think of you. Consider what you should do to become more fulfilled both today and in the future. 

Those who "figure out" what life is really about, seem to focus a lot on the higher-order needs. They might have been workaholics and will cast judgment on their former selves.

People on their deathbeds regret not spending more time with their family, traveling more, worrying less, etc.

Maybe you think the key to happiness is universal - that it is a constant in the changing world. However, the challenges facing this generation is not the same as that of the previous generation. Grandparents might have had trouble staying in touch, but they weren’t stuck on social media.

The 'deathbed' is not a representative state of life. What you desire when you are there might not have much in common with the most meaningful or satisfactory life you could have led.