My greatest ADHD superpower is being able to nuke my train of thought by forcing myself to think about song lyrics or character stat sheets for 5 minutes and being able to completely stay off my previous painful tangent nearly indefinitely
Once I'm not stuck panicking about it my ability to just flat ignore upcoming danger is legendary
Forgetting is actually very important. There was a study done on mice that had been made unable to forget. One mouse was placed into a pool of water with a randomly placed rock for them to cling to. The mice that were unable to forget would not look for the new rock location when it was moved. Instead they endlessly swam around where the rock used to be.