Latest news, I have successfully voted and staked.

$GMT GMT Part Two: A step-by-step guide on how to vote and lock coins. For those who do not know the voting website, come look here; I just figured it out as a novice.
First, the website link cannot be sent out, so I will show you a screenshot:

Then the interface looks like this↓ Click on 'LOCKED GMT' at the top left, and the three wallets below will appear. You need to have one of these installed to authorize the link.

I downloaded Phantom, and later I will use this as an example. PS: You need to use a VPN to download this wallet from Google. After downloading, you can import your wallet's private key.