Thanks for your reply.
Do you have any idea if Binance has a demo account? I don't mean this
https://testnet.binancefuture.com because it is only for futures.
Please advice how to do test trades with margin.
I don't find it in binance only spot and futures . If you want you can use other exchange as alternative just for practice your trade and once you learn it you can now try it in your binance account .
List of trading sites that has demo
https://www.hedgewithcrypto.com/bitcoin-demo-trading/. Just check on the list if where there is a demo for margin .