I once read in a book about dreams that G. Gurdjieff (if you don't know who this guy was, try to find out hehe, one of the most amazing characters I've came accross in mz life so far IMHO) said lucid dreaming, i.e. knowing that you are dreaming is a very good thing to do and he gives some advice he got from tibetan Lamas on how to induce it, but that you should just observe the dream and what happens in it after you realised that you are dreaming and not try to change its content. I know that changing it is something one wants to do immediately upon realising that one is dreaming, but I think he has a point there when he says - just be aware...also his advice is to imagine a flower for example each time before you fall asleep and eventually after some time the flower will show up in your dream and it will be an object that will make you aware that you're dreaming because you actually programmed it to appear in your dream...the thing many people do when they realise they become lucid is wanting to have sex...i think that's a beginners mistake and is clearly a distraction in order not to realise "more important things" that you would if you wouldn't just think of sex all the time (in real life also hehe....lots of things here are conditioned into us in order to distract us from what is really important...)