When I was younger, I used to be a computers' nerd. I was spending hours and hours in front of a computer screen, either working and learning new technologies, either playing video games. I have really regretted the time I have spent playing video games, because it was really unproductive. If you want to spend your time on something, make sure you are spending it on something productive because sooner or later you will regret it! 

There is nothing more productive than exercising! It helps you escape from the stress of the day, improves your physical appearance by losing fat or gaining muscle mass and finally boosts your confidence and self-belief. Another important thing is that exercising helps your brain function better because as you get away from the stress of the day then you can think clearer. You might be physically tired, but mentally you are refreshed.

I really regret the times that I didn't find some time to exercise when I was younger.  Don't make the same mistakes that I did. Start exercising! Find a hobby... Get away from the machines... Love your body! Love yourself!