I think everyone has thoughts like these, more or less.

What worked for me: meditation. Right now I'm listening to series of training sessions by a guy in redwood city - here are the recordings for the first three weeks.

http://www.audiodharma.org/talks/audio_player/3825.html

http://www.audiodharma.org/talks/audio_player/3844.html

http://www.audiodharma.org/talks/audio_player/3857.html

This might not be your thing, but if come across something like this that is a good fit for you, it can be great. Best is something that you physically do from time to time, not just read/think about.