It's important to redo old projects and ideas, here is why:

I worked on a project about 6 months ago, it was mostly just a "coding challenge" and I worked on the project for 3 days and I didn't get it to work. But I started working on the project again from scratch 2 days ago and I got it to work this time!

The moral of this story:
Just making new projects makes it hard to see how much you've grown and improved. But redoing old projects (even if they worked) gives you a concrete representation on how much you've improved (and if you have at all😉)

You're totally right!

When I was in school to educate for web development, I had this great idea that I wanted.
I found out, that I needed to learn web sockets and do things in real-time on multiple computers.

At that time, I didn't know anything about web sockets, barely knew how it actually worked.
Then 1 year later, I thought, why not get this thing done and up and running. I did the whole project in a weekend and it actually worked like it should and how I first imagined it work.

I got really happy afterwards, because it showed me what I've learned and how I'm getting better.

I am currently getting my degree and it always amazes me how easy stuff suddenly is when I just look back one semester

I had an interview code test about 2 years ago, and I did fine, but I knew it was shit.
Fast forward to a month ago, the topic came up, and I thought "I wonder how I would do it now?"
Now I'm making a quirky little mobile game from it. 🙂