just go into my wallet/convert.. are you blind?
are you stupid? If he is blind how did he write the post
A stupid person would not ask questions, although the process might seem easy to you, I know the difficulty I encountered before being conversant with how to convert and withdraw from my wallet.
I suggest OP checks the Gcoin.casino or the playW3 FAQ/Airdrop documents, so as to know the best approach to use when making such an up to date instructions process to follow.
That is, check the airdrop rules and status, transfer GC to a supported wallet, find an exchange with a GC/USDT trading pair, execute the swap (GC to USDT), withdraw your USDT.
Also, you got to first check to know if the GCoin is locked only then can you withdraw it, you would pay network or gas fees as it's known and check if the trading volume of GCoin/USDT is low because it might be lower upon conversion and not amount to much.