The best exchange to trade daily for me is c-cex because withdrawal of bitcoin here charges low in fees and is literally just like the other exchanges. I trade on many exchanges like c-cex, poloniex, and bittrex just because these three for me is the best exchanges to use. To prevent fee charges burning your profit when difference is small between buying and selling, just simply put up a bigger investment, better yet look for another coin to trade with a big difference in buy and sell price.