Create my Metamask wallet
Metamask is a mobile app and a browser extension which gives you the ability to interact with the Blockchain (so to mint NFTs).
Install it here.
Then, you will have to note your 12 words seed phrase (private key).
Congrats, you now have a public address that is your identity on the Blockchain.
Watch out, if you lose it, you may never access to your account (ie your cryptos and NFTs). We recommend you to write it on a piece of paper securely stored.
DO NOT SHARE YOUR SEED PHRASE TO ANYONE