Hello!
I had the same issue and my therapist suggest using self-compassion. When you mess up simply tell yourself it's okay. Treat yourself like you'd treat a friend.
If a friend came to you asking the same advice, what would you say?
Here's a link to an ebook about self-compassion. It's a pdf document and it'll open in your browser.
http://www.self-compassion.org/self_...n_exercise.pdf
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