for successful trading you need toget some experience about trading, you need to know about the currency or any other place where you want to invest and do trading, the second is that first you should invest a little money, you should start trading with a little amount of money and when get some experience then you should go for full fledged trading.
Trading depends on your skills mostly.You need to have good knowledge, experience about trading.Trading is mostly skill based game so any newbie hardly can succeed on trading.So I am agree with you on this point that newbie should start with small amount and it will be a wise move.