Origami is right. I'd say you just have to work on being a bit more aware of your surroundings, and question whether you're dreaming more genuinely. If you do this and are in a similar situation where the RC fails, you'll be aware enough to think, "wait, but I'm positive I'm in a dream right now. I'd better do another RC before shrugging this off."

Saying that, the finger-through-palm RC has a lower success rate than the nose-plug RC. I always make sure to try breathing through my nose during my RCing sessions.

You're close, keep it up!