These are what allow us to buy and sell cryptocurrencies. There are a handful of popular crypto exchanges, some of them have advantages over others. For example, some exchanges don’t allow us to deposit and withdraw using fiat currency like the U.S. dollar and euro; others aren’t available in certain countries. In this guide we will focus on two very popular exchanges, GDAX and Poloniex. GDAX gives us the ability to use our fiat currency to buy Bitcoin. Poloniex does not, but does give us a wide array of altcoins to trade. There, we’ll be using major coins like Bitcoin and Ethereum to buy the altcoins, and vice versa. Other popular exchanges such as Kraken and Bittrex offer even more coins.
Perhaps the deadliest mistake a trader can make is letting emotion get the best of them. Those with the wrong mindset will lose in the long run; Whether it’s losing a trade and trying to get it all back by chasing a phantom opportunity that was never really there, or winning a huge trade just to get too greedy and giving it all right back. Set a clear goal each time you sit down to trade and walk away once you’ve hit your goal. Do the same for loses. Walk away and come back tomorrow. There will be opportunities will be there the next day, I promise.
Dad advice: Aim to buy low, sell high; try not to buy high, sell low. Look at the price trend, if we are at the highest point it has been in the past 24 hours (days, weeks, etc), that is inherently riskier than buying at a short term low. It can make sense to buy as the price starts to break out, but buying after a breakout at a new high while filled with excitement is a little “irrationally exuberant.” This is to say aim to “buy the dips” and often “the best time to buy is when there’s blood in the streets… even if it is your own.” Conversely, the worst time to buy is often (but not always) right after the price has shot up and everyone is manic. If you do buy high, and it ends up dropping shortly after, consider HODLing (to “HODL” is to Hold On for Dear Life as the price goes down. It is what you do when you buy high and then neglect to set a stop or if you are going long and can’t or don’t want to cash out yet). Buying the dips and holding can be dangerous in a bear market, and it can put pressure on you to sell low if you overextend, but its still often better than FOMO buying the top. Sometimes it can be wise to sell for a loss or to buy when the price is at a local high, but knowing when this is the case requires a rather high skill level. Thus, although rules sometimes are best broken, start by aiming to buy low and sell high.Two last points 1. Knowing when to take a loss is hard, buying the dips and holding is easy. 2. The dips WILL happen, you must be patient and ward off FOMO!

Don’t get itchy fingers (AKA be wary of FOMO buying). As noted above, if you have a strategy, stick with it. Sometimes the market will go nuts, and you’ll see epic gains, and you’ll get FOMO (all humans get FOMO, it takes discipline not to react to it). Selling or buying at that time may make sense, but don’t get nervous and switch up your whole strategy without thinking about it. That is often when bad moves are made. If you are going to buy heavily or sell heavily on a whim, consider taking a step back first.
Fundamentals cover things like crowd behavior and news flow.  Crowd behavior means that when the “crowd” is piling in while the price is of a coin is pushing upward, maybe you will want to ride the momentum (with caution as these people may end up getting trapped within it), or it could be a situation where everyone is in the thing and now the coin is seeing a downturn, and they are all trying to piling out.
We will describe these cryptocurrency trading strategies for you here, and the first ones we’ll review are the technical strategies.  With technical trading, you have two basic strategies to use for the trading of cryptocurrency.  You’re either going to trade with the trend/momentum of the current market, or you’ll be trading for mean reversion.  Mean reversion is when you think the spring has been pulled too tight, and your waiting for that spring to snap back to an equilibrium point.
Only invest what you can lose. During the recent crash in January 2018, hobby-investors got burned. Reports of frustration and losses came at the cost of broken monitors, smashed laptops, and heavy monetary losses. While the rules are in more particular order of importance, it’s safe to assume that this is the most important rule, the rule to rule the rules. As soon as your money is converted into cryptocurrency, consider it lost forever. There is absolutely no guarantee you can get it back. Losses don’t simply come from dips in the market; extraordinary factors such as hacks, bugs, and government regulation can mean you’ll never see any of your money again. If you are investing money you can’t afford to lose, you need to take a step back and re-evaluate your current financial situation, because what you’re about to do is an act of desperation. This includes: using credit cards, taking out mortgages, applying for loans, or selling everything and traveling the world (as glamorous as that sounds).