What Do You Tell Yourself When You Have a Bad Day?

After a not so successful first year, how can i learn from mistakes and do better next year? The outcome of whether anyone buys my course is something completely outside of my control. What's in my control are my own thoughts about it and my own actions. And the thoughts are having a low expectation. So that is why i don't really feel bad when something goes wrong because the expectations are quite low. This doesn't apply to everything, and this does take practice. But if you want o ave fewer bad days, then i think for me, what's worked is just having this idea of, it's not the event that is making me feel bad. It is my story about