Perhaps you are not setting the correct value of the sell price. I had a similar case. For example, you set the price of $ 10, but with the growth of the coin didn't reach this level and immediately went up or vice versa rose only to $ 9.9. Maybe that's the point.
It is the one possibility that the order was not filled. I have those experience too, and sometimes, my order sell was not filled because the price in the market is not reaching my price. Besides that, perhaps, our calculation or our analysis is not right in predicting where the price will reach the price, so we miss the right price to sell. I think that is normal because we cannot always predict with the right so we cannot see our order will be filled related to the market movements. And that make we need to learn and practice more about the analysis.
