What to do tomorrow...
You wake up. The rest is tomorrow. Don't worry about today what tomorrow will bring. It hasn't happened yet and is still undetermined.
My mother says "don't project". I try to live by that. I try to not anticipate things which are out of my control. I just wait and react as I am faced with things. It helps with my sanity. I used to project and worry about tomorrow. One day, I just said f*** it. I can't control what I can't see and I can't control those things that I didn't place into motion. I can't control others or their actions... so why am I worried about it?
Wake up, have a cup of coffee (or the whole pot, if you're like me), enjoy the sun (unless it's raining then enjoy the rain). The day is new and fresh and waiting for you to join it.