Leverage is money that a broker loans you. Unless you’re a professional trader, you should stay away from leverage until you’ve learned everything you can learn about making trades with your own money. While leverage can help you make greater profits with short cryptocurrency movements, it can also amplify your losses when the trade takes a wrong turn.
Another thing I need to make clear is the type of trading I do - day trading. My base currency is Bitcoin, which I use to buy Altcoins like Ethereum, ZCash, Golem, etc. When I make a trade to buy an Altcoin with BTC, I could end up selling the Altcoin back for BTC within a matter of minutes or hours. All of my profits are converted back into BTC at the end of each trading day.
Cryptocurrency is volatile! There is always the chance that the market will crash, or that you will face some other catastrophe. Cryptocurrency isn’t a centrally controlled and regulated fiat currency. If you lose a coin, or someone cheats you, or your account gets hacked, there is nothing you can do about it (which is one reason why you want to have 2-factor authentication set-up).
Always pay attention to Bitcoin. Most altcoins (every cryptocurrency except Bitcoin) are pegged more closely to Bitcoin than Asian currencies were to the USD during the Asian Financial Crisis. If Bitcoin price pump drastically, altcoins price can go down as people try to exit altcoins to ride the BTC profits; inversely, if Bitcoin prices dump drastically, altcoin prices can go down, too, as people exit altcoins to exchange back into fiat. The best times for altcoin growth appear when Bitcoin shows organic growth or decline, or remains stagnant in price.