Very nice! =)

Hi, in order to help during this ear training process, I've coded a small add-on. There is the Github project, if you want to use it, feel free. https://github.com/shiwer/soundgym_tryhard_mode
I'm might be looking to write a small article to explain how it works. Let me know if you'd be interested in.

Congratulations!

@Poe Zoel How you install it ?

Short answer is, download the directory.
Now, open Chrome for eg and navigate to 'chrome://extensions'. Enable Developer mode (usually a toggle switch on the top right corner) and click on Load unpacked. Select the root directory of the extension to load it into your Browser.
Let me know how it goes