Demo is the only way to know how the trading system works. Even till date I use demo account, why! Because each time I wait for breakouts and retest I already placed trade in demo. So when I just check if the trade is doing well or bad I will go check on trade view if it still remains at same price no need of stressing my self going to trading view 😁😂. But never the less, demo will give you the experience you need. Only if you are ready to learn from it.