I dont see pstake tokens on my Metamask

I have a problem with airdrop Pstake’s tokens from Coinlist. Etherscan show me transaction pstake tokens to my Metamask, but unfortunately I do not see them there. How to add a token contract to a wallet? Or what should i do to see my tokens?
Please help me)

Go to https://bridge.persistence.one and connect your metamask wallet. After connecting you will get an option to add $PSTAKE token to your metamask wallet.

Thanks for your response. OK I tried to open metamask and I get:

Network ID Mismatch

Please switch the network to Mainnet. Your current network is Unknown Network.

I don’t know what to do now.
Just a little background: I’m 78 yrs old and not the sharpest tool in the shed. So make like you trying to explain this to a 5 yr old and I really appreciate your help.

Hello, please select “Ethereum Mainnet”