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It's a reality that no matter how much you learn about trading through YouTube or by using techniques like paper trading, you will learn trading only once you start trading with real money. When we are new to anything we do commit mistakes before developing skills in that domain like when we start learning driving, we do mistakes initially when we drive car our self. Likewise in trading, we have to face loss in the start and best why to reduce that loss is to start with a small money or money that you can afford to lose.
I don't think you don't learn something while trading with paper money. Honestly, that should be the good start to understand the market first and learn how to be profitable, even if it's paper money. I am sure even if you tried it with paper money and thought of it as real money, you still won't be able to be profitable if you don't learn the risk management and learn where to enter and exit.
The good thing with paper money is to avoid consecutive losses if you do it in live trading with real money that you lose if you didn't apply your ideas and what you learned on the paper money; then that strategy in your mind will bring you negative losses at the beginning of your live trading journey.
That's why I always suggest anyone here to start with paper money because that is what I started learning first—all strategy from YouTube and from the source where I mostly learn basic to advanced. However, mostly I learn from mistakes. TradingView has a journal; all trading history is recorded there. I'm just going back to my mistakes or even winning trades. I always ask myself why I win, why my stop-loss hit, or why I lose.
I know all of us are not the same; maybe my own experience and strategy might not work for you, but I still would suggest that before anyone enters into trading, always make sure to trade first with paper money for safety and learn first and learn the risk management.