small or big amount its not matter I think you have to learn how to trade you can get help from professional traders.
It is very imperative to get knowledge about trading before any investment in the market as the new one in the field may need search regarding the market as to know how traders buy and sell their coins. He should study the previous charts of coin and to consult the expert in the market. Start should be taken from minimum as to familiar with the trading and to avoid any possible loss in the beginning of the business.
There are many things to learn in order to be good at cryptocurrency trading. This is a different beast to learn compared to forex and stock market. There is no kind of regulation in terms of trading so have to take it and find a way to make work for you.