A lot of very successful people have become that way by making a lot of mistakes and still focusing on their chosen area. Thomas Edison learned thousands of light bulb combinations that did not work. Right now I'm clearing out inventory and assessing my strategy (I love buying games). I may decide to move to books (shipping is ridiculous). I have a long way to go before I get anything new, but I will keep posting. Maybe I'll make some Montessori work again. I appreciate your participation in this pursuit.