Going long is simple, one just has to buy the asset and hold it. Going short is simple conceptually, but it a bit more complicated to execute.
There is nothing complicated about going long or going short but most newbie traders always fear to go short, they prefer going long always until they become Pro and know more about how to analyze the market.
Going long is more and common used for leverage trading, not holding.
In trading stocks, the most common way to short a stock (profiting if the price goes down) is to have a margin account at a brokerage. A margin account means that brokerage will loan you money or assets. When you have margin activated and short a stock, it might look seamless, but what’s happening behind the scene is that 1) brokerage lends you shares of the stock; 2) you sell them in the market. When you buy them back later (hopefully at a lower price), you return the shares back to the brokerage and keep the profit.
I think it will be perfect to use cryptocurrencies and crypto exchanges than using stocks and brokers. Also know that not all the profit will be given to the trader, there is certian amount that exchanges will deduct from the gain, this amount is paid to lenders on the exchange as a profit of the coin they lend out.
Before we discuss how you can do this in the crypto world, a warning on the dangers of shorting. When you go long, buying an asset at a price, the most you can lose is the entire amount that you’ve paid. This is NOT the case when shorting. When you short, you make money when price drops and lose money when price goes up. The most you can make is 100% of the trade amount (as price goes to zero), but the amount you can lose is UNLIMITED
The amount someone can lose if someone go long or short is limited, it is the amount you use to trade. The gain is not 100%, it can even be over 1000% less or more. Remember as price drop to $1, it can even drop to $0.1 or even drop more to $0.001 or even drop more. What matters most is trading volume and liquidity rate not price dropping to 0.
Of course, most trading venues would have internal triggers that will likely liquidate or close your position before that (as you run out of money in the account). But just a warning conceptually of the danger (safest to always set a stop order to exit the position when it really goes against you).
After 80% of the money has been liquidated, most exchanges if not all, will send you a notification message. If you use isolated margin, you will not be able to transfer collateral into your trading account and the all the money will be liquidated. But in cross margin trading, you can still be able to transfer collateral into your trading account in a way the liquidity price will get farther. In addition to the best advice is to make use of lower leverage, I think 5x is good but you will see some people using 100x or even 125x, how would the money not be liquidated. Also you can even go long or short on some exchanges with your real funds without borrow, this is the safest as it seems more like spot trading, but in a way you can still go short.