Do you have a Therapist you can see, someone objective that you can talk to about this stuff. I know what its like when your mind is racing and thinking so much to the point that you feel like you're shutting down and everything is just too hard, confusing or you keep forgetting stuff. I'd encourage you to see a Therapist and be open with them about what you're going through. In the meantime I find meditation helps, and doing some form of physical activity like Yoga or dance.