Yeah i am also tried making some profit in yobit fast growth in altcoin and you can easily understand the concept of the site..
But there's many shitcoins in yobit.. so beware to buy shitcoins better to research first and watch the fluctuate of the price of altcoin..
if you want to seriously in altcoin trading, im suggest you to use poloniex, it's a biggest altcoin trading at today. Im trade at poloniex and i make arround 2btc/mnonth.