Having much difficulty focusing, poor memory, slow thinking and movement. Whats going on?

Get checked. Are those new sx or something you've experienced before? These sx are indicative of many ailments. You might want to consider seeing your primary care provider for a complete work up to rule out any medical causes. Once you know what's happening one way or the other, you might want to see a health psychologist to help you cope either with these sx or medical illness (if found).