A new 'advanced' difficulty

[sms-cx]

To fill the gap between normal and hard: A difficulty which deletes the word on wrong key press but doesn't end the run. The idea is to force you to type each word until you get it correct on one stroke, without the need to restart the test over and over again. Could also be something like an "auto-delete-words" setting, if the difficulty-setting isn't fitting.

[Miodec]

You could try using stop on error: word for a very simmilar effect.

[sms-cx]

Thank you for the suggestion, it doesn't work for me in particular but I see that this covers it for most people. I tend to correct all my mistakes anyway, the forceful stopping me from continuing isn't the issue. I want to force myself to retype whole words but the muscle memory quite often overrides and I delete backwards to my mistake (that's what I want to fix).

[Miodec]

Having the website automatically delete the characters for you will NOT help you fix that then - it will have the opposite effect, because you will get used to an automation and rely on it - but its not there on any other platform. I would recommend just forcing yourself to use ctrl + backspace to build muscle memory.

[sms-cx]

Yeah, I'm trying that just tend to fall back to my wrong habit.

[musjj]

@Miodec
One solution to this is to force the user to manually erase and retype the entire word themselves. This way they won't get reliant on the website automating it for them.