I am a 3d artist and I have a few questions regarding NFT's (not sure if I should sell my artworks)

I am a 3d artist (been doing/learning 3d in 3ds Max since 2005), I wanna try my luck with NFTs as an artist but I am not sure if that's gonna be worth it, feels to me like I might just lose money more than I'd earn and so I'm hesitant.

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Can I lose ANY amount of money by putting up for sale my gasless NFT artworks?

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I'm not famous by any means obviously so would I still get value on my artwork if I put lots of months and hard work into it and it looks cool? is that enough for NFT to grow its value?

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Or you have to also have some strong and powerful saying and meaning (political for example) in your artworks to sell well?

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Also, how do I protect my NFT artwork's copyright so my name is always linked to it? (so I can earn from it from other sellers that bought it?)