Do you ever?

Do you ever find yourself thinking that you should be doing some thing else, but you don't stop what you doing? ... Yesterday, I spent almost my entire day on the computer and yet I kept getting this nagging feeling like there were so many other things I could have done. I waste to much of my time on stuff that will not increase my progress of moving forward. I need to remember to take the time at home as an opportunity to read, study and learn instead of playing computer games all day.