Is some kind of entity blocking me from having an astral projection?

Today I was practicing my AP techniques and entered a hypnogogic state. I began seeing the different dream- like images the state is normally accompanied by. I had images of different scenarios of people saying that I was not able to astral project (i have been practicing regularly for 4 months now). When I asked, is it because there is something inside of me blocking it, I heard several people say yes. I also had an auditory hallucination of my partner's voice say "definitely". My partner is someone that I trust completely and speaks the truthto me. Thus, I feel like I must take this seriously. Has anyone else experienced something like this? Does anyone have any thoughts on why this might be happening? x kitty