I'm new to lucid dreaming and have difficulty recoginsing dream signs. The other night I dreamt that I was with Will Smith (actor) and we were being attacked by giant Kiwi fruits. I would have thought that would have been a sufficient enough sign that I was dreaming, but I just accepted it as normal. A few nights prior to that I was dreaming and for no apparent reason I realised I was dreaming, but unfortunately woke up with excitement at the thought of becoming lucid. What am I doing wrong?

Could somebody please give me advice on how I can realise I'm dreaming or how I can control my excitement in order to remain lucid please.