When playing some of the longer games on your console system, make sure to take a break and get away from the screen. Go outside for a few minutes and let your eyes adjust. Stretch your legs. You will start to notice how much better you play the games when you take these short breaks.
If you want to sell your old video games, try posting ads online to increase your reach for buyers. Try enlisting the help of a site that specializes in online auction sites as well, but don't make it your first stop. Many times there are shipment issues on here, and then you may deal with people who don't pay. Try Craigslist, or use the marketplace app on Facebook.