Whelp. I tried going on Lumosity, which is a site for upping your brain and is actually pretty damned fun. It allows people of all ages (yes, even me) to make them slightly smarter in the areas they're not doing well, with attention and problem solving being some of the things. There is a full access thingy that I have yet to check out, but I'm sure you wouldn't need it. Basically, tl;dr, this will help you with some brain areas with games.
http://lumosity.com (http://lumosity.com)
...why is this so fun...? D:
Makes me want to play Brain Age.