Try using tapping, the EFT (Emotional Freedom Technique). It's endorsed by Dr. Mercola (http://eft.mercola.com), amongst others. It looks really silly, admittedly, so don't do it around people with which you want to maintain a level of respect, but I've personally used it at times. To be clear, I'm not sure if it truly unlocks the emotional blockage, or whether it's the personal embarrassment of having to put yourself through such a stupid looking exercise that makes you want to JFDI.
I'm sure this will attract some jeers, but I'm not saying this is explicable and robust science--but it got me the desired effect.
I'm sure this will attract some jeers, but I'm not saying this is explicable and robust science--but it got me the desired effect.