Knowing what you want and getting to try it out is exciting but, because it is new it is a bit scary too; I think the tickly feeling could be a little apprehension on how it will be, which might be overshadowing the excitement until you get a little more experience and realize you are doing fine and enjoying yourself.
You can join the House Rabbit Society, LOL,
http://www.rabbit.org/ start a chapter in the UK.