Crypto Basics | What Exactly Is an NFT?
ERC-1155 can issue fungible and non-fungible tokens together in a single contract, and is commonly used for things like in-game items.
NFT prices are determined by market bids. They’re often less liquid than fungible tokens, so there may not be a buyer when you want to sell.
Minting and trading NFTs on Ethereum both require $ETH to pay Gas.
Understand the rules before you get started, and don’t place orders based on gut feelings.

This is just an opinion and may not be correct. You’re responsible for your own gains and losses.