Hello fellow Lucid dreamers. My last 3 "lucid dreams" I have awoken right after realizing it was a lucid dream. The two first I did the finger through palm reality check, but it feels like, as I do the RC, that my mind thinks "OH S***, HE KNOWS HE'S DREAMING, WAKE HIM UP!".. I'm not too excited thinking "OMG I'M LUCID", I keep calm. But I never get to stabilizing at all. The last of these three lucid dreams I was being chased, and a couple seconds before he caught me I realized I was Lucid. I thought to myself "Okay I want this to work.. eeeh... I'll push him away with a shockwave!" But before I did it I was already awake again... Why do I wake up? Another Lucid dream before this where I woke up, when I realized I was Lucid it instantly became more vivid. I also woke up one or two seconds after that.

So my question is; What should I do next time I realize I'm dreaming? I'm thinking I should try the spinning technique.
But why do I wake up? It's like my subconsious mind or something gets blown away by the thought of me being Lucid.

Thanks in advance!