The previous poster is giving you good advice. I am using a bot successfully.
But first, I had to learn to trade manually. Bots help you earn faster but you have to set the coins, settings etc.. based on market conditions. I read Gunthar's (of gunbot trading bot for Poloniex Bittrex and Kraken) posts
https://bitcointalk.org/index.php?topic=1715214.msg17180502#msg17180502 and l practiced until I understood. Good luck!