I am 20 years of age and am diagnosed with ADHD. (PI-Inattentive Type.)

I have an issue with replaying past mistakes in my head over and over again. It is TIME CONSUMING! But starting yesterday, it became something else. Now, instead of getting fixated and stuck on one thing at a time. My mind is jumping from one past mistake to the next and going from one to another so quickly, instead of staying on one at a time.

Please help!