Is metamask available for mobile?
Yes it is, find it on the app store.
Your private key is what links you uniquely to your blockchain address, while your seed phrase is a fingerprint of all your blockchain assets that you can use as a back-up if you lose your crypto wallet.
Ensuring you are using the BSC network is very important, using a different network may result in the permanent loss of your tokens.
DeFi staking is a practice that enables a user of a Decentralized Finance (DeFi) Platform to act as a validator for transactions and earn profit for doing so.