Don’t beat yourself up when you cannot perform a task as well as you thought you would. You are not the epitome of perfection, and you are allowed not to be perfect.
Perform your responsibilities without error and always make sure that you are performing well and that you are not using any dishonest measures.
Spend time with your family or friends today. Or maybe sit alone. But make sure that you do give the people you love some quality time.
Always stay loyal to the work that you are doing. Do not find disingenuous ways to earn money below the table and be loyal to the place which provides you a living.