Here is the how:
1) Be open, honest, and mindful of what exactly you are feeling, what is causing it, and why it sucks. (Akin to being ‘aware’ of yourself, taking the time to ‘relax’, in order to ‘observe yourself, feelings, actions, behaviors’.)
2) It’s a part of you, make it into a third party.
3) Manifest evidence to the claim that this ‘thirty party’ enemy is a threat to XYZ (XYZ=your life goal, dreams, aspiration, continuity of urself, and attainment of happiness)
4) After you have gotten angry at it and are motivated to ‘change it’, you can apply NLP techniques to DESTROY THEM.

That is how I usually do it… similar to what Tom said, but yeah…