Am I too Late in growing?

Am I too late in my career to start learning new things? I’m close to 50 this year yet I have been unable to grow much in my career the last few years. I am starting to see peers who started later than I rising up the ranks.

Not sure if I should still find courses and go for them.

There’s never an age for not learning. The guru was once an apprentice and he too never stopped learning