Any time you have a bad day, think back to the last time you had a good day. Was that day better than this one is bad? Good, then you’re still winning on average.
You’re always going to have a few rough patches. Sometimes your good days borrow resources from the future – juice – that you’ll have to pay back on a day when you have a deficit. And sometimes the bad days give you exactly the motivation or the experience you need to make a better one tomorrow.
So take the long view. The averages smooth out very nicely toward the horizon.