many people say that investing with you can afford to lose, even though it's simple, but it's very good for your trading plan.
use capital in accordance with your financial abilities, if you're still a newbie then using low amount first is not a problem..
It's a simple calculation, with 10 dollars you need to make at least 50% to have for fees and maybe from that 50% 20-30% is your profit. In dollars, you need to make at least 5 dollars, and to pay fees 2-3 dollars and than you can have your 2-3 dollars profit in your wallet. Fees depends from exchange.
With low amounts you are forced to risk more to make something. More money you invest, for example 100 dollars, making 10% (10 dollars) and paying couple dollars for fees you will have 7-8 dollars profit in your wallet. It's easier and safer to make 10% than 50%.