Your question:

How did you know that you didn't miss something in the treatments or that you were the right healer for him?

An answer
I never choose my patients moreover the electro-magnet holograms and patterns creats so many set back to prevent people from experiancing this treatment that whomever attend it there is some huge inner light supporter that wants very much to be free.

The other sessions after plumbing the patterns out, in addition to the Aura Soma message of his Soul were first of all an Energy drawing diagnosis and the treatment was an outcome of the diagnosis.

The fact that it didn't last long was an absorbing results of the colors at home, it will also answer partly the other question.

You can suggest patients to avoid  the use of Black and Grey but don't take any responsibility to something that they may not follow - it is up to them. Just Be There when they need you.

About confident...

I am just a servent lealevi5 in my work and my life I commited myself to the path that been decided for me and have dedicated myself to follow and fulfill it.

As a servent I am a pipe used by the creator's light to manifest one method of healing (or teaching) or another method. It is not me whom is successful nor it is me that people need to look up to.

It was never me but The Creator.

I serve The Creator and his creatures in whatever method I gain and is requested for - every creature not just people.

So it is not a confident in me but in The Creator's Will.