need some help...

[skydust]

hi im new to this, and i need some help. i tried astral projecting using the white light method but i am not very good at visualizing and i just couldnt imagine myself surrounded by white light, and especially not having this light entering my crown chakra. everytime i tried, it was as if something was blocking it and it gave me a headache. also, whenever i breathe deeply, i fall asleep, which is what happened here, i started slipping into dreams and had to catch myself to come back and remember to focus on the white light thing, but it just wasnt working. what am i doing wrong?

edited to add: also, whats the deal with the body having to fall alseep in order to project? i dont see how my body could fall alseep but not my mind because usually my mind drifts off first and then my body, and when i feel my mind drifting off i wake up and so does my body.