Depends on what the journey looks like. If you're dead set on becoming a software developer it's a great and solid introduction to programming and computing.

But if you're not, I'd recommend resources targeting more popular and lower friction languages than scheme such as JavaScript.

I've read it after 5 years of professional experience and it was a very good read.

If you have time and patience then at the beginning, otherwise mid.

I see the videos every 5 or 7 years... I find always new things.