Welcome gopolks! ^^ Come over and introduce yourself to the community in the “Hi, I’m new here!” topic!
As a RC, you can use whatever it’s best for you, there’s only one thing to keep in mind: the RC, more than its effect itself, should be used as a moment in which you truly question reality around you, that is, genuinely asking if you’re dreaming, and be ready to act if it’s really a dream. Whenever you try and question reality (with questions like, does this seem real? How did I get here? What did happen just before I came here? What was I doing?), it’s really easy to recognize dreams, RC or not. Besides, you did know it was a dream even before you started the RC 
so no worries! Just take time during the day to raise your awareness, and you’ll do great 