Tangential related:

I learned in a class on design that you should work with what you already know.

If you don't know about colors, then do it in grey scale, if you don't know about that, do it in black and white.

The best ideas come from working with constraints.

While highly skilled designers/musicians/developers/writers/etc. do this despite being able to work outside of the constraints, a beginner can do it too. Sure, they can't choose the constraints as freely as a pro, but they can make work with what they got and it can lead to interesting results.

This is also a good way to approach new things without embarrassing yourself, as you don't try to impress with skills you don't mastered 100% yet.