Did you use a foam applicator? I find these are exellent for getting a super thin layer down which is a lot easier to buff off and also means you can leave it longer to cure. I find if you put too much on, if you leave it a long time to cure, you quite literally cant get it off and I have to apply some fresh so that the softeners in it can remove the old and allow you to get it thin enough to remove.
i think i may have just used my hand