NFT is a non–interchangeable token built on the blockchain. The peculiarity is that it is unique and has no analogues. It's the same with games, you play, earn points, exchange them for NFT. You can find out more here https://nftplay2earn.fun . I recommend it

I recently found out about trading and that people make good money exchanging foreign currency. I want to try it too, so can you give me some advice?

Hello. What methods of earning cryptocurrency do you know now?

Hello. I have been involved in cryptocurrencies for a long time and can give you advice. Be sure to read the information about a number of different chart patterns that traders should watch out for in order to optimize their trading strategies, I advise you to check the bear flag trading article, because the bear flag pattern is one of them. The main thing in trading is not to take hasty actions.