My Bitcoin and Ethereum usually start out at Coinbase and then I send them to Kraken or Bittrex to trade for other coins. A good bit of also goes through Blocktrades and ends up here in the form of STEEM (then SP).
Looks like your trading system has a pretty good success rate (12 / 18 in the green is pretty good). I've read a lot of stats about daytraders and their success rates and even the good ones struggle to profit from their trades more than 30-40% of the time. However, they still come out ahead as they set their stop losses closer to the buy point than they do their sell points for their profits.
I dabbled in day trading stocks, leveraged ETN's, and options for a couple of years and had some good trades and also some disastrous ones. I wish I had the patience and time for short term trading right now. My strategy is more of a long term one as far as crypto currency is concerned.