Dear Dorota, I always worry about doing things perfectly. That comes from childhood and being punished for not doing things to their liking. I always second guess myself about things and get obsessed about if I am doing something good enough or the right way.  I have a great meditation book for ACOA called Days of Healing, Days of Joy, there is great stuff in it. Our childhoods were terrible. I grew up in an alcoholic home plus was sexually abused. I know that partly why I have the OCD and other disorders. At least we have each other to share with. love,Joy