If you find that it is not suitable, you can always leave the market.
When choosing an online trading, look for the platform that has the most competitive spreads. Currencies are normally traded in pairs of ask bid price. The difference between the bid and ask price is known as spread. For example of AUS/USD 1.3345/1.3350, the quote here means you can buy 1 Aussie Dollar with 1.3350 USD or sell 1 Aussie 1.3345, and the spread is (1.3350 - 1.3345) which equals to 0.0005 and equivalent to 5 pips. platforms often do not charge commissions on investors trades because they are making money from the spreads. If the spreads are low, this means they are offering a cheaper service and thus traders have better profit value. Then, of course the more competitive spreads the better.
Some platforms have high spreads and this will increase your trading costs. Also, some online trading platform has hidden costs. So, choose carefully which online platform you want to go before investing your money there.
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