There were a couple ways you could have made it easier, but Scratch's constraints and abilities can be hard to navigate or understand. Like you can use Say, or a visible variable, and I think the drawing extension would work too.

I tried to do a different guessing game, not much more complicated, but it does get hard... I wrote up some thoughts in a thread: https://twitter.com/ianbicking/status/1546207554665172992

It's good that Scratch doesn't change that much, there's lots of books and traded wisdom that retains its value as a result, but there's also some big missing pieces that make some things very hard to write in Scratch, and they could be improved upon but they aren't