If you have already bought/bid and one and NFT on the BeyondLife.club launchpad, you have already signed up for buying and trading of NFTs on BeyondLife.club. You will need only a single account for both selling and buying NFTs on BeyondLife.club.
You can refer to the section on how to create a profile to know how to sign up for the BeyondLife.club marketplace. You can also edit your profile and add your social media handles.