[Mindfulness.]

I've always put a lot of pressure on myself to perform well in school and now in my work life. When I make small mistakes that can be fixed, I really stew over it and constantly tell myself that it could have been avoided. It's consuming me more now as I started a new job earlier this year as a classroom teacher and feel that I'm not performing as well as I should be, despite there be no negative feedback.
I have been trying to be kinder to myself but unfortunately, that doesn't work overnight. I also have looked at engaging in some self-care activities such as getting my nails done, getting a massage, etc but they are quite expensive, and I can't justify paying that kind of money on myself.
I am planning on going to the doctors to get a mental health referral to see a psychologist but this whole self-pressure has really taken its toll on me and I genuinely feel like shit because of it.