How do you respond to these intimidation attempts and manifestations of your thoughts/fears? Do you actually feel like they have a major effect on your and inhibit you progress or is it just a speed bump along the way? I had a vary similar thing as a child, and I always ran away from it. Once I realized that I could just do whatever I wanted, I confronted this entity and it seemed to disappear from my dreams (still haven't encountered it). If you can, standing up for yourself or snarling back at whatever is in front of you could help consciously make you less fearful of what was going on, and give less power to this subconscious suggestion.