Hello!
I have found the “unfollow” feature on Facebook to be very useful. In fact, I have unfollowed every person besides my close friends and family. I know that it is difficult to simply delete some people. You worry about hurting their feelings, or what they would say about you. Even though those are not your burdens to carry, you still think about it. At least I do. So, just unfollow them for now and consider deleting them later. Pretty soon you will forget all about them! It really will being you some peace.