having trouble with very intruguing method

well, i saw I H8 REALITY's method (sorry if i got the name wrong, i know its something like that). Well, it seemed very good and easy, as well. So last night i did everything it said. Woke up 6 hours later, imagined the backyard and the textile feelings, everything it said. But for some reason, it couldn't visualize my backyard. I soon learned i couldn't visualize ANYTHING. every image i tried to imagine is there for less than a second, then went grey, and proceeded to disappear.

well, it continued through the whole day. even at this second, i can't make an image of anything. i don't know what's going on, but i'm actually a bit concerned o.o

has this happened to anyone else?

I am not exactly sure what you mean by not being able to visualize, When you visualize you are just using your imagination. It is not really like seeing it like in a dream or in person. Can you recall a place and remember what it looked like, felt like etc? If so you are visualizing. Visualizing has worked for me, though it has been a long time since it has, it has only worked once for me though, I kept visualizing the beach, the waves crashing on the shore, feeling the sun etc. I woke up in a dream under a pier at the beach, it was awesome and realer than real, but it hasn't worked since.

You are probably thinking about how you can't visualize anything to the point where you actually do that.

Sometimes when I am imagining things, something happens to the image and it gets weird, and then I try stopping it but it just keeps doing that same thing because I am thinking about it doing that thing.

Just think about imagining things and nothing else.