@Half banana said
"However if you want to be honest and live without false expectations then it's better to recognise that we all die and therefore we should live knowing that our life is very precious and should not to be wasted on supernatural fairy tales."
That's the problem, without these fairy tales, I believe life is meaningless.
I've tried the "give your life meaning" mindset. Let's say I were to go and help a charitable cause, in the end, it would all still be meaningless if we live for a blip in the fabric of time and then die. Sure our actions would help others living today, and in some small way carry over to others later on, but life would still be pointless.
Without this faith (and I know I could very well be lying to myself), I'm a nihilist.