Help: How can I make a nicely design website?

Find a web site you like and imitate it.

exactly what I've been doing. Thank you.

Start here:

2. http://bettermotherfuckingwebsite.com/

I'm sure you have your reasons, but when I see that somebody is using next.js and mdx for a blog and personal website, I can't help but think they're overthinking and over-engineering something teenagers used to do by hand in Notepad and host on Geocities.

yes you're probably right. In the future, it will host other projects so I want to make it as flexible as possible but for blog stuff, I've overdoing it.

Check out http://csszengarden.com