Either you start with a smaller or bigger amount the most important factor is how knowledgeable you are about it and what strategy you will follow to make profits and reduce the risks, and if you can manage this then rest everything will be fine with you.
Actually, it is true that large or small amount of free trade, but to start trading may be better to try a small amount. It was done with the purpose for trade requires learning so at the earliest time when the small amount if it fails we have nothing to lose in large numbers. To understand the trade does require a good learning. Once we got used to trade for sure we will have a strategy to profit in trading.
You can learn trading easily but you cannot master it overnight, the key to make money in trading is not by just learning how to do it but with proper usage of our experience and our ability to adjust every time we have mistakes in trading.
Many time our experience and skills don't work when we miss the right moment to make profit, i am doing trading since last year, and now i can say that i have a experience of trading, but in that way, many time i get lose, whenever i thought may be the coins price would be increased and many time i was wrong, So i can use the word of luck, if you have good luck than definitely no problem in your earning money from trading.
Luck and patience are two important factors to make profits in trading and if you lack anyone of them then it can suffer you big loss and its impossible to take right decision every time.