Head over to metamask.io
Download the MetaMask for your browser (it supports Chrome, Brave, Firefox, and Edge), iOS, or on Android
Follow the instructions to set up your MetaMask
<aside> ❗ Make sure you are on the Ethereum Mainnet network.
</aside>
Go onto Opensea.io and login using MetaMask. You will be able to login. There you will receive your NFT.