Love Yourself Like Your Life Depends on It

I'm always curious to see what was the initial domino that fell that allowed all the other dominoes to fall as well. I got into loving myself by reading Kamal Ravakhan's book love yourself like your life depends on it. When you start loving yourself you don't want to poison yourself with alcohol or surround yourself with toxic people. You have a far easier time letting go of that which doesn't serve you so one would you agree with that and two if so how do you recommend that other people go about loving themselves?