RC is not really similar to a mantra. It is checking reality, as it is said. You need to really ask yourself if you are dreaming. as MarineRecon said^^

You are not really trying to randomly do it when you are in a dream, you are trying to question your reality more.

Awareness is key. You should sign up for classes on here and get some one on one help from some people, that way you can find out if you are doing things wrong easier.

Good luck on LDs, if you have questions PM me, or of course the dream guides are here for you as well. They have 3 stars above their name.

DV Academy