Very little can be accomplished in metaphysics if one doesn't have a healthy self image and sense of self esteem. This is due to the fact that a metaphysical treatment must have a target. Whether you're using affirmations, visualizations or meditation, there must be a focus for the results. That means you.
Metaphysical treatment is as good as the beliefs which are supporting it.
If you are having difficulties with manifestation of your metaphysical treatments, this is the most likely reason why. We all have the instinct of believing well of ourselves. This may be buried, repressed, oppressed or suppressed, but it still exists. There may be gender considerations of worthiness and both genders can have their own version of this. We may have instigated self-fulfilling prophecies, which ensure that we attract humiliating or disappointing circumstances.