trading is simple
you only buy in low price and sell in high price
Its not that simple. You need to analyze the trends
i think this is what we do if we want to make high profit, but for the simple learning, i think you can select in any altcoin in market exchange, buy it when the low price is reach and wait until the high price you want for selling that coins.
how we know the low price? we can watch the movement for selected coins for a while, maybe for one until three hours before we decide to buy and if we are sure that coin is really in down price, we can buy for small amount first to test, and see the market movement, is it really down or is it go up.
Yes you need to analyze the trends first because in it you will have an idea of where the price is going. Through it you can speculate and then will know what price you should buy and sell the coin. You can also check the order book and see the prices set by traders and observe how much the spread is between buy and sell price. Altcoins price is really unpredictale and are fluctuating so timing is important because your target price may be hit in just minutes or may take days or weeks so for me, I only put a price that can possibly be hit within the day because if I set a price that's too far from the current price then it might not reach that price. It's better to have small consistent gains than to have it one time big time because you maybe lucky if it reach that price or it may not hit at all and you will end up at a loss.