Sounds like co-ordination difficulties in the hover - don't be at all disheartened; you've only 12 hours in your log book and it's not unusual not to be able to hover in only that short a time - jeez, I took a lot longer!! It shouldn't take you long to work out where my personal title came from i.e. the days when I couldn't hover and talk.
At some point, something clicks and you'll wonder why you ever had trouble with it.
You will get there I promise and no lesson is ever wasted. If you're having difficulties hovering, then your instructor can interperse the lessons with some nav otherwise you could get bored and tired!
Cheers
Whirls