If you want to trade safely, you should know the money you want to use. You can use free money which you don't use for anything, so if you lose that money, there is no worry at all. After that, you should learn more about trading so you know how to make a profit and you do it again and again to make a bigger profit. You should not listen to our people to buy a coin, but you can use their suggestion to analyze that coin, so you will know if that coin is worth or not to buy. Besides what I say, you need more to learn trading so you can have good skills in trading.