It sounds to me like you are letting you mind think about too many things that really aren't that important to daily living....things that are very abstract....in might help if you bring your mind back to living each day & doing the things you need to go. Focusing on the things you mention that you don't know about.....isn't where your focus should be.

Sept Morn has a great suggestion....I would follow that if I were you,
Debbie