Last week I made my own Website, I was so proud on it.
Today I told a friend absolut it and he shows me how to do it right with CSS-Grids.
Now I am asking me how coud I be proud on my old website

you always will think that your old things are ugly, but that's when you know that you gained experience and that you learned something.

Wait until someone introduces you to CSS preprocessors, then you'll REALLY shit the floor

Feel even more proud and make sure your site is accessible and has a flexbox fallback at least.

@ThatDude Yep, so you have to provide a fallback.
Client's might not accept it and that's their right, but if I build a site for myself I'll definitely use grid because it's awesome... And a fallback with a simpler design for browsers that aren't up to date.