Kyrani99 you have a tendency to over complicate the issues. Your emotions/related cancers is however over simplified but in the ball park. Have you studied Dr. Ryke Hamer's works?
Your explanation of metastasis makes sense, however a sense of lack also affect the liver. Usually the first organ to get metastatic cancer are the lungs, from the shock and fear of a cancer diagnosis to begin with.
In my practice I find resentment as the biggest common denominator regarding digestive system cancers. The very worst resentments will involve the pancreas.
I'm not saying this to criticize you, you are on a better path than most. I see you can be a good healer and working with patients, you can continue to hone your skills.
Also, if you don't have it already, you need a good system of energy therapy as dealing with subconscious issues with conventional therapies is rather haphazard and often not all that effective.