That will be a good decision if you are new to trading or basically a newbie. But a skilled trader is the one who analyses all the possibilities and trade in whatever the condition of the market is. Yes as you trade more, you will gain more experience and hence you will be more confident. For this reason, I always advise people to trade with demo account in order to get acquainted with the market conditions. Once you feel confident and learn various strategies on various situations, trade in the real market and make profit.
Trading is only good if we are good at it, and could be so frustrating if we are not good at it. What makes the difference is how we are inclined to it. Some will not know about trading at all or much but would want to make the best out of it which I see as not possible. That is why te first thing to do by any newbie in trading or the traders facing challenges is to learn, and this takes time. It requires much training and persistence of the trader, and this could even take years. And just like you said, good demo training is very important, this is not always available in crypto exchanges for bad reasons, but still, we should find a way to use it as it is the best in making sure that we learn any strategy possible, build our trading system and plans, and afterwards move to a live trading account.
Even if you are having issues later, you might still abandon the live account and move back to the demo to train better. Or at times when you want to just practice a new strategy, you can use the demo as it is virtual and you will lose nothing training with it. But one must be sure to train their psychology in trading too, this is what the demo account is lacking to teach you as it is such that is technically risk-free, which is why we should find a way to be serious with it and also train in that regard. And if the experience is fully gained, no one will tell you, you will know through your trading handling, but if you are still lacking, just move straight back to the training as this is important before more money is lost easily.