Number one: Yama, which includes the below, Truthfulness Non-violence Non-covetousness Celibacy Non-acceptance of others possessions.
If you're waiting for limb number 8, Samadhi, to solve all of your problems, think again! It is only thru samadhi that one is empowered to practice the other limbs most effectively. (archer analogy) All the other limbs must be practiced however!! As MMY says in the Bhagavad Gita pg363 HB.."With the continuous practice of all these limbs, or means, simultaneously, the state of Yoga grows simultaneously in all eight spheres of life, eventually to become permanent." So if you've taylored your life around waiting for TM to kick in (hungry dog analogy)you're gonna be waiting a long time....and I only mentioned Patanjali's first limb!!!!!! Are you practicing Patanjali's other limbs of Yoga as recommended by MMY himself in his Bhagavad Gita?
