Before that I was feeling pretty tired of my life, barely played with my little son, was exhasuted in my work as data scientist and my personal relationships with my wife, family and friends were poor. Also I didn't had the energy to pursue my hobbies, was abusing cannabis and alcohol and had poor eating and sleeping habits.
Since I started going to the gym and found this simple beginner routine everything started to feel better. Something changed and feel way better and improving every other aspect of my life.
I started this program, but I think anything similar will help: https://stronglifts.com/