Our emotions shift and change everyday. Our sensitivity swings up and down. The degree of happiness, sadness, confidence and fear alters by the second, which makes life challenging when you have a task to perform. Although you may feel the pressure to be on top form, you can't expect to be perfect. The demands you're making on yourself are impossible for anyone (even you!) to achieve. Despite the fluidity of your feelings, you can do what you need to do.