The problem with trading competitions like this is that they are usually dominated by whales because the winners are determined by trading volume. How can regular people compete with millionaires who have everything at their disposal.
Also be careful of joining exchanges, not all crypto exchanges are trustworthy and some may not pay rewards or some may even run away with your money.
Whales harvest the highest prizes, that`s for sure, but there are ways to get more trades. I will share with you one of them, set up sell order at the price that nobody else did, and you buy your sell order. In this trading competitions it`s all about trade volume, execute your own orders and you will climb up faster. Whales are doing the same, but they doing that with huge amounts. It`s hard to be on top on this trading competitions, but with little tricks you can take some prize at least.