Valuable advice, thank you for your efforts, teacher.

1- Under no circumstances will a transfer from a final third party be accepted.
2+ Do not accept final cash sales/buys, otherwise you will be exposed to the biggest scam in your life.
3- Do not release the currency until you are sure that the amount has entered your account and not through a message. Just open the application and make sure that the money has arrived in your account.
4- Stay away from those who appear to you in the trading record as being only p2p traders and do not accept any dealings with them at all.