It does not really work in the current market situation when the volatility is not as high as it had been back in 2017. That was the favorable time of exit. However compared to the previous months, the current months have shown some good vibes in the crypto space and the market is volatile as well. So in order for newbies to make money in trading, they need to gain experience first. And a bullish market like this would be the best part to make the maximum profits.
For traders that are newbies, the best for them to do right now, I think it is to just buy some coins and altcoins to hold till the bull run time, during the bull run, they can then enter the market to trade, because that is when the market becomes more volatile.
So for them to get perfect ahead of the bull trades, they need to then use this period to practice more and gain more experience, that is why we have demo trade, if they can demo trade and adapt to this condition, then they will do greatly during the volatile market. So like you said, experience is the best teacher, now they still have the opportunity to gather enough experience through demo trade.