Don't feel disheartened. The fact that lucid dreaming is filtering through into your dream from waking life is a good sign of progress. Everybody has silly moments where you want to kick yourself when you wake up for not becoming lucid. I had one once where my friend was walking down the school corridor with me and there was a giant poster on the other end of the corridor that he pointed out to me. It was bright red with giant blue writing on it saying "GO LUCID!" and I just said "Huh, that's a coincidence. I sometimes Lucid Dream". I didn't become lucid and I shrugged it off