image captionNFT Kim Catdarshian's fur is dotted with diamonds, the symbol for cryptocurrency Ethereum

The hype surrounding NFTs (non-fungible tokens) has been hard to ignore.

Bright, colourful digital-only art that is selling for millions - who wouldn’t be intrigued?

But my first experience of investing in this world was a nightmare - with far too much time, money and stress wasted on… well, not very much.