The only thing stopping you learning Blender at any age is you.
As you get older other factors can hinder your progress, such as the availability of time due to family or other life commitments. But none of these will stop you learning Blender.
Set yourself some time to learn Blender around other commitments and stick to it. Obviously the more time you have set, progress will be quicker.
Don’t just set time to watch videos, set time for practice. Watching videos will get you so far, but most important is to practice what you see in the videos.
