You may first want to consider organizing your TBR list and also organizing your books so you can actually see what books you own but haven’t read yet.
If you don’t actually want to read the book, then it’s time to let it go.
You’re likely to also have quite a few that end up in the gray area known as the “maybe” pile. This is the hardest pile to deal with!
Now that you’ve gone through your TBR and sorted books into your “keep” and “maybe” piles, it’s time to take it to the next step of managing your TBR: dating your books!