Ha, I got that same book from the public library in my early teens.

I never completed it at the time either, though it created a foundation that enabled me to learn action script (Adobe flash) with relative ease and ultimately go on to complete a computer science degree despite pressure from my high school teachers to go into mechanical engineering or similar.

On balance I got to pursue something that genuinely interested me and happened to pay well and I'll always have a fond memory of the Sam's book, as well as the free Ubuntu CDs that got me onto Linux years before we got broadband

Edit: it wasn't teach yourself in 24 hours, it was the 21 days version (https://www.amazon.co.uk/Sams-Teach-Yourself-21-Days/dp/0672...)