And I get a reward for exercising, and I start with light exercise.
I have a friend who sometimes exercises with me and holds me accountable. Having a friend who makes you do things is a great way to make yourself do anything really!
Some days I do read for hours at a time, especially if it's a good book. But as my life has gotten busier I've gotten into the habit of reading on any down time. That's while traveling, eating lunch, waiting for something or any time I'd probably end up scrolling through social media.
Not that online stuff doesn't count. Books aren't the only way. Blogs, articles, online fanfic and even video games can count as reading. If you think of reading as only one format it can be a lot harder to find time.