Did you ever have a phase where you felt 'dumber'?

Like out of a sudden you feel like you have lost your earlier attributes, became weak in what you were once strongest at, struggling to understand what you used to love learning.

I think I'm going through that phase now, I hope it's just a phase and nothing long lasting. I was a piano prodigy and now because of so busy high school I lost my piano skills and my chess rating in chess. com went from around 1000 to around 300. And I struggle to understand my physics chapters no matter how much I grind myself. I never felt so dumb after getting mental glow up. And I used to be a deep thinker and nice poet but now even my English sucks.

What was you dumbest phase and how did you brought yourself out of that zone?

Did you ever have a phase where you felt 'dumber'?
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