Beginners sometimes find their lucid dreams finish prematurely. Usually it is the sheer excitement and adrenaline hurry that makes you awaken.
Other occasions, you can just forget you are dreaming (remember, the mind functions in a different way while asleep and it’s not hard to forget things).
To create your lucid dreams keep going longer, cultivate a relaxed and focused attitude within the dreamworld. Help remind yourself that you’re dreaming frequently to remain psychologically grounded.
A great way to boost your lucidity (and therefore prolong your lucid dream) would be to rub both hands together while saying “I am dreaming”. This kinetic sensation encourages the conscious brain, while drawing awareness to your ideal weight and from your body asleep during sex.
Such techniques have enabled me to see lucid dreams as lengthy being an hour instantly.