Unfortunately, the answer to solve a character crisis is to stop overthinking it.
I actually think Game and Watch is a lot better than he was before, but he’s basically a different character now except for a few select moves. I know it’s hard to jump into the same character and not try to play them the way you’re used to, but if you think of him as a different character entirely and try to start from scratch, it might be easier to drop some of those habits.
Unless you just don’t like the way he plays at all now. Then you just have to try everyone and see who you have the most fun with, or who you click with the most. Have you enjoyed any other characters at all?