The monkey thing is what I call "dream flashes" it's like entering a wandering mind state or hypnagogic imagery. When those appears I try to get to the point where it feels like I have two minds, one mind observing and the other mind is thinking those weird thoughts, it's really hard to explain anyway you can try. Just focus on those weird images and keep yourself entertained instead of focusing on the practice itself. I believe that these images are the beginning of the dreaming process.

And also don't worry about sleep paralysis that happens AFTER you start dreaming, if you wake up in sleep paralysis during the night it's either and disorder called Sleep paralysis lol..
Or, wait for it - A FALSE AWAKENING. If you feel that you can't move and you start seeing scary stuff you are in a dream bed in a dream room! So make sure to use those opportunities.

So just keep focusing and see where your thoughts takes you, it's after your mind that takes you to the dream, not your body, so stop focusing on the body, because then you might stay there.

Too bad that so many disturbances occurred, I know how it is sometimes it's even more annoying that that, I get a lucid dream and then I hear my dad slam down the toilet seat in the physical reality, I focus on my physical body and BAM I am awake...

Just keep practicing and learn what you feel in both your mind and your body while relaxing.

Good luck! = )