Pema Chodron says "lean into" the thoughts rather than trying to force them to go away or ruminate on the fact that they are not going away.

I have found that mindfulness exercises, meditation practice, and general reading by various gurus of all flavors of buddhism has been very helpful. A good way to start is to google mindfulness and check out books at the library about meditation. 2 meditation sources that I have really liked are Jon Kabat-Zinn and Insight Meditation (can't recall the author, but that's the name of the book). I really like books by Pema Chodron (very easy to read) and Chogyam Trungpa (not quite as easy to read, but lots of good stuff in there). For mindfulness there is all kinds of stuff on the web, I really like the resources at UC San Diego's Mindfulness Center: http://health.ucsd.edu/specialties/m...s/default.aspx