The true teacher defends his pupils against his own personal influence. He inspires self-trust. He guides their eyes from himself to the spirit that quickens him. He will have no disciples.
If you eat a lot of starchy foods introduce a vegetable once a week then twice a week and then three times a week. Slowly fill your diet with new flavors. By the time you're ready to let go of whatever it is you want to let go of you've got a full menu.