I think those are some really sound principles to apply to your life. I have started to try and do the waiting thing a bit which I think would fit in with the count back from five or the delayed gratification. Focus for me can be hard at times due to my ADHD, but I have learned to cope with it fairly well over the years. There are still times when tasks overwhelm me or I just shut down.
Each of us has our own methods (and challenges) so I think it's important to find something that works (this happens through trial and error) and then work on developing it. Also, we all get overwhelmed at times, I don't believe people who say they do not.
Haha, yeah, those people are often the most broken sometimes I guess.