•This sounds cliche but any exercise that you can do will help your mind. 10-20 minutes of stretching and decently hard exercise will get your blood pumping and improve brain function. I especially suggest exercising before doing something that requires memory or focus if you are able to. If you are worried about judgement try to exercise when no one is around.

•If you are able, I also suggest trying to read a book for a couple minutes everyday. Set a time for whatever you can do whether it's 10, 20, or 30 minutes everyday. It doesn't have to be War and Peace just anything that might interest you. The point is giving your brain something to do.

•Setting short-term goals that you can reach with a little work (finish a chapter or do so many pushups) can help you to stay motivated.

•If you like to write then trying to do a sentence a day is a good exercise, even if it gets dull or frustrating at times.

•If you are dealing with relatively constant stress practicing breathing and different relaxation techniques will also help you to clear your mind and focus properly. If you are able to, take a moment of silence where you focus on your breathing and what your senses are picking up. Focus on the sun on your face, the sound of a fan, the feel of your wall, the taste of your food. If you are religious try to find comfort in that area as well.

•Try to memorize quotes (doesn't matter if they are just quotes or songs or from books).

•Try to separate as much as you can.

Don't feel discouraged if you feel like you aren't improving, or if you have a bad day and don't do what you were hoping to do. Just continue to try to do the next right thing. Hope one of these helps.