1. That there are no good or bad emotions. They are just there and they are mine.
And it's good to feel them all (even if sometimes they could be unpleasant).
To feel is to live.

[Moreover, when I let myself feel more - I feel much better. I have less anxiety, I don't feel exhausted and dizzy all the time, I don't have shortness of breath.]

2. Rational thinking is not all I have. Sometimes I KNOW something, but I can FEEL something different. And it's fine. It's important to get access to what I want to do, not only what I should do (rationally).