So my advice would be to get in the habit of reading, but be mindful of the details of the habit you are establishing.
I realize I might be a relatively fast reader, and this fast reading I only did in English (while my mother tongue is Dutch), but do not underestimate how quick some people can read?
I suppose I can concur in your 'low complexity' argument: I did not read Tolkien in my teens, and probably would have skipped all the poetry while reading.
Edit: Clarification: 15 books each weekend should be read as ==>> I traded my 15 books for 15 new books each weekend, reading them during the weekend and when not in school
So you mean 15 books each week, not each weekend! I was surprised when I read that, but this makes more sense.
Honestly, its not a target it is just what happens when you read a lot - you get through books.
As for YouTube or Netflix, I dont really watch that much and can't really understand how people spend that much time on them. Given that though, I read instead and lots of people dont understand that. Each to their own, happiness is different for everyone etc
not Having Netflix is a start. Realizing that most Netflix shows gets dumped mid-story after 1 or 2 seasons and will leave me without closure is another