Congrats P-Factor! Your hovering practice is going just as it should be (although I HIGHLY recommend the use of training gear, as it will save you skids, help prevent tip-overs and buffer against blade strikes, as well as keep the heli more stable). Have you gotten to the point where you can use both sticks in unison without really thinking about it? Sooner or later it'll just "click" and you'll be at one with the heli, if only for brief moments at first. Keep the tail pointed towards you, and yes if it rotates too much and you start to lose your bearings, cut the throttle. I'm still practicing nose-in (nose pointed towards you) hovering

As for the trimming issues, what you're experiencing is ground effect. You'll find that if you try hovering over an uneven surface (like a lawn) at a couple feet above the ground, it's more "unpredictable" and less stable, because the thrust from the rotor blades that is bouncing off the grass and coming back up isn't coming in as evenly as it would, say, over a wooden porch or a brick floor. Once you get about 3-4 feet up, the ground effect is greatly reduced and you don't see these issues. Because of this, I don't recommend you keep trimming it right now (because trimming it means you're taking your hands off the stick for a brief moment and that's not good when you're learning and you need all the time to react that you can get), just trim it out for flight 3-4 feet off the ground and you should be pretty set, and use the sticks to "hold" it while the heli is under the influence of the ground effect (oh no, it's drugged!). You'll find that with practice controlling the heli even at low altitudes where it was originally more unpredictable will be much more easier. But for now, it's something you'll have to deal with. Practice, practice, practice is all I can say, and soon you'll be at one with the heli, your motions will have more fluidity to them, and you will begin to understand and trust your heli more. For now though, treat it like you're taming a wild, flying snake that's trying to take a chunk out of you (and, potentially, your wallet!) and stay on the defensive, and you will be on the path to bliss. Then you might be crazy like me and start hovering it a few inches from your face, taking walks in the park with it, flying around obstacles and landing on elevated plywood boards.

But you gotta learn how to crawl before you can walk, and you gotta learn to walk before you can run.