it is hard to say that in trading it is not 100% that all of your prediction is accurate but if you know how to analyze and reading candlestick you have high percentage in gaining income.yes you gamble in that coin but it is part of trading, not all the time you are gaining sometimes you lose and it is normal for traders and investors.
Indeed, there are no traders who can predict 100% accurately, because there are many things that can make the coins we buy change suddenly.
So no matter how good the analysis we do to predict coin price movements, we won't always be able to make a profit when trading. So it is normal
if we experience losses when trading, most importantly the percentage of losses that we experience is not more than the percentage of our winnings.