all market analysis, read the chart and it all is not easy. It took a long time to become a professional Trader.
Yes, it take too much time and it's necessay much patience to become a professional trader. Those trying to make fast profit every day aren't trading, they are gambling, and this kind of trader probably will lose their money and won't make profit. Sometimes it looks like gambling because most traders lose money, and the minority part of them make real profit, but it doesn't depend only of luck, patience and skills are very important.
trading altcoin with the longterm it will make us lose if the coin is a coin with low volume.
i don't like the "per day" part but i like the "taking small profit" part.
because it may not be exactly possible to earn profit every day, there are down times and you have to watch the market day and night which is not possible.
but to be satisfied with a small amount of profit like 5% or 15% in 3 days is a good idea. you take the profit and exit. if price falls you have gone out and saved yourself if it goes up you still made a good profit and exited.