Jeez, don't worry so much about yesterday, last week, last year whatever. Consider this: yesterday you were probably trying to think abut what you did the day before. The day before that you were probably trying to think about what you did last week. No wonder you can't remember what you did.
Whatever happened yesterday is been and gone anyway. What purpose does it serve to remember it? The only moment that matters is NOW, and if you spend NOW struggling to remember what you did this morning, yesterday, last week, last month, then the only thing you will ever remember is the struggle to remember.