Any simple website ideas to practice css layouts? (Effective Practicing Techniques)

When ever I try to make a website it never looks quite right. Currently I’m using flexbox and designing for mobile first. I’m trying to make a simple website much like Only I’m making a website that teaches you have to fly a quadcopter.

Before this I tried making a website for game reviews. I even got the back end stuff working correctly, but I couldnt for the life of me get the CSS layout down.

any tips?

Provide a link to your current project so we can see what it looks like now.

Not entirely sure why you need to see my current project but ill post a git once im on PC.

Well if you want tips, we need to see what you are currently doing and what you want it to do that you can not figure out how to do.