Programming is a subject that you need to do, so I would suggest that you get a book that sets you tasks to complete from what you have learnt for that particular chapter just read. There are loads of such books around. Of cource tutorials such as those on this website are great as are videos on YT to a lesser extent.
I would say 10% of learning C++ comes from books. The other 90% comes from practicing programming concepts continuously. I'm a beginner to C++ and I've been constantly told by teachers that you can't just learn C++ right off the bat by reading books. It's a gradual process. You read the books, watch YT videos for support, implement the coding concepts, you fail, you continuously retry until you understand what the concept truly means. Good luck to you!