I agree, if you start with a big amount in trading you will feel very disappointed if you lose that money. And being a newbie in trading that will start with a big amount is a very risky way. It is better to start an amount that you can afford to lose while you are starting trading. Once you know may strategies to it you can increase your capital and start earning some real profit.
I learned this from my experience. Because facing losses in trading is most common and we cannot be assured it will not happen when we are having experience. It is always good to trade with small capital like we must do in gambling.