We can really became a successful traders if we are ready to learned and developed skills and experience about investments and trading.  It is also very possible for us to makes money from the market if we are ready to put effort and perseverance in trading as you can not hundreds percent be able to analyze the cryptocurrencies market accurately.
Trading platforms don't matter much but what matter is the skills and knowledge you have about trading.  However,  I have been trading with binance and poloniex for quite some time now and these two platforms are trustworthy and good for new traders.