Oh no, another good youtuber lost to the algorithm...
And you'd be right. So on my journey to become a sellout, I've put out a video describing, in brief, the way I would find problems to practice on. It's designed as a short overview, with a more detailed description to follow. Video is here, just under 90 seconds in length.
Note that everything is my opinion — maybe you have other experiences and/or other opinions, and that's fine, do what works for you.
Yeah, some of it's designed like clickbait, but the video contents are exactly what's advertised here.