When you buy/sell via an exchange, try to use limit orders (try not to use market orders). On some exchanges, like GDAX, limit orders have lower fees than market orders. On GDAX, limit orders are free as long as they don’t fill immediately. Meanwhile, market orders result in a .3% fee, which is better than the 1.4% that Coinbase charges but not as good as 0%, especially if you are day trading. If your exchange rewards you for using certain order types, aim to use them.
Why is it strongly recommended to invest only the amount you can afford? There is a psychological reason for that. When you use your own money that you can lose, you will not be vulnerable to different types of emotions that can ruin your deposit. Fears of losing all money that you have borrowed from the bank or friends will affect negatively your trading results.
No one actually knows how long this whole crypto thing will last but instead of losing sleep at night constantly checking token prices which have zero fundamentals behind them, I’d much rather invest in a real business that will make money whether Bitcoin prices go up or down. (Full disclosure: To satisfy my own curiosity, I do own a tiny amount of Bitcoin which won’t make me rich nor will it affect me if the whole space goes to zero).
Arbitrage trading can be described as the simultaneous purchase and sale of an asset in order to profit from discrepancies in its price. In other words, arbitrage traders will purchase an asset in one market, and then sell that same asset at a higher price in another market. In the context of the cryptocurrency market, arbitrage trading might resemble something like this:
Don’t invest blindy. There are people in this world who would sell a blind person a pair of glasses if they could make money. Those same people play in the cryptocurrency markets and use every opportunity to exploit less-informed investors. They’ll tell you what to buy or claim certain coins will moon, just to increase the prices so they can exit. Due to the highly speculative nature of the cryptocurrency markets today, a good investor will always do his or her own research in order to take full responsibility for the potential investment outcome. Information coming from even the best investor is, at best, great information, but never a promise, so you can still get burned.