Nope and yes. They are but always, you want to help aids to aid you more.

Let's say that beats increase a 10% your chances to have a Lucid Dream. Your skill lets say that adds another 10%. Your skills plus the beats are a 20% chance.

Adding a WBTB will increase another 20% and doing reality checks give you a 15% and having a Dream Journal another 5%. This is a total of a 40% extra, plus your 20% chance adds to 60%

If you add further methods you will increase your % to a point where you can induce a lucid dream at will, what would be a 100% So it is not a matter of a miracle pill that will hit you with a 100% chance alone, but it is about stacking "buffs" to get you up there