Are there any contouring makeup tips that can be applied to daily makeup?

Since I'm a makeup beginner, I only do contouring to add shading to my jawline.

Even after watching YouTube videos, it didn't seem easy to follow along.

Is there any contouring makeup that can be easily applied to daily makeup?

It seems like a lot of people get contouring done on the bridge or side of their nose as well.

I wonder why it looks messy when I do it lol

I think the key point is applying the color subtly and naturally.

It seemed like that was very difficult.

If you have any contouring makeup products you use daily, please recommend them.

Also, are there any other tutorials worth watching and trying out?