When Bitcoin forks into a new cryptocurrency… everyone gets free coins. When Bitcoin Cash was created, everyone holding BTC got 1 Cash for every BTC they had. Next time Bitcoin forks this will be true again. NOTE: Forks can be confusing; if you aren’t in the fork for the capture date (which isn’t always clear) you don’t get the free coins. DO NOT CHASE FREE COINS (see next point).

Know thy taxes. Speaking of legal tender like the USD, it is what you use to pay taxes. If you don’t understand Bitcoin’s tax implications, brush up on them before you start power trading. One could get them into a situation where they make money on paper, but end the year down in Bitcoin without taking their loss, and thus end up owing a bunch of money they don’t have in taxes. Those who don’t have investment experience can get in trouble if they don’t understand the somewhat complex implications of trading crypto.
The screenshot below is a basic representation of these concepts, where the horizontal lines roughly mark zones where price either finds a ceiling or a floor, and generally, in an uptrend, past resistance zones can become supports later on (notice how candles earlier failed to breach the second-last horizontal line, but later bounce off from the same) and in downtrends, support zones can become resistance.
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The term “day trading” suggests manically executing on trades every few minutes. But, as many of these mistakes show, day trading success doesn’t necessarily come for finding a new potential trade every second: you might find more success simply by taking your time, finding opportunities you’re fairly confident in, and executing a couple of trades every day or two.

I would also encourage you to have a secure place to keep your passwords, maybe written down in a couple of locations or stored in a password manager, just create something which works for you. Also, keep a copy of your private key for each wallet. If you lose your access and lose your keys, then you lose your coins. Don't worry; this is not necessary with every wallet, for example Coinbase and a Nano S will manage your private keys for you, this will all start to make sense once you start.
Mean reversion is where the investor assumes that the price of a coin will remain at an average price level over time.  Upward trends, and downwards trends, are expected to revert back to the average over the long haul. This means you need to know the charts well and be able to figure out what the average price for the cryptocurrency you intend to trade in. When the coins are less than the estimated average that is when one wants to make a few purchases. When the price is higher than the average it is expected to drop back down to the mean price and that would be the time to sell.  Of course, figuring out just when to sell is the trick, and that is where the gamble comes in.
You can’t simply go to a bank and ask for any digital currency. Instead, you’ll need a proper digital platform for making any trade in Bitcoin, Ether, Ripple or as a matter of fact any crypto. After all, that’s the whole point of creating digital currencies. Cryptocurrency exchange platforms are such online portals that allow you to exchange a digital currency (cryptocurrency) for another one or even a fiat currency depending upon the type of exchange.
Don’t be greedy. No one ever lost money taking a profit. As a coin begins to grow, the greed inside us grows along with it. If a coin increases by 30%, why not consider taking profit? Even if goals are set to 40% or 50%, you should at least pull out some of the profit on the way up in case a coin doesn’t reach the goal. If you wait too long or try to get out at a higher point, you risk losing profit you already earned or even turning that profit into a loss. Get into the habit of taking profits and scouting for re-entry if you want to continue reaping potential profits.