In my past i remember somtimes when i went lucid when the dream was unstable prob getting to exited and i would move slow mo or very heavy feeling showing that i was waking up. I only yesterday had a lucid where i was able to accually stop my dream from collaspsing i felt very weird at first like i was falling out so i ran to a nearby stair case and felt the textures and focused on it while remembering im dreaming the shaking stopped my heart slowed down but was still going very fast. so what i can say is work on dream stablization focus on your sences to keep you in control of your dream dont drift off and pay to much to the dream story line as it can make you unlucid. hope it helps if it didnt make any sence its because im high sorry haha