I recommend taking a look over at the Beginners’ (and Absolute Beginners) Book Clubs, they have loads of resources and suggestions for books.
The main thing I took away from these threads is that it will be hard in the beginning - maybe take a few hours to read a page or two, but the more you do it, the easier it becomes! Good luck!
A few of my favourites to start with (I only just started reading books in all jp too!) are Polar Bear Cafe, and Chi’s Sweet Home
Oh I also recommend this website which let’s you switch between different languages for a number of books:
