Ive made significant breakthru's in my life on this subject.The book that did it for me, and began the journey is called "Feelings..buried alive never die" http://www.healingfeelings.com/
There is a tool in this book called the script which has literally worked a miracle in my life. SUPERCHARGED version of EFT all done with words and the mind. And you dont even have to believe it.
Strongly suggest you get the book and devour uits contents. One of the few book I have come across that actually does what it says its gonna do.