Fwiw I don't think I could hang with a classroom based excel class either. I learned mine primarily with LinkedIn Learning and Coursera, and then some on the job practice (with some help from Copilot to keep things moving).
Got me to the point where I've used features the actual higher level analysts at my company aren't familiar with, with things like PowerPivot, data modeling, DAX, and the occasional M code (though this is an area I know is there but always resort to AI for dabbling with for now).
I think a good chunk of my motivation to learn came from pointing it at some open datasets from the Fed, treasury international capital, and BIS. Makes life more interesting than going through hypothetical company's inventory and other nonsense the courses would throw at you...