I receive a lot of messages from scammers pretending to be interested in selling TRX tokens. Some of them even managed to deceive me for 5-10 USDT. If you are not willing to transfer some portion of the tokens first to confirm ownership of the wallet, then don't even bother messaging me.
The fact that your rank is also newbie and not much reputation here means that even someone genuine too won't bother going in first because they will also be scared of getting scammed. I suggest maybe you use a trusted escrow service for the transactions.
I remember on that was offering a few escrow services to the community members, though I can't locate their ANN at the moment.