I think it depends on how you feel about the story itself. Do you really love the story? Do you feel like it’s apart of you? Is this story more important to you than other stories or vice versa? Did you write the story more for yourself or for readers? Did you write it solely for the purpose of writer payments or just because you enjoy writing?
Sometimes it’s best to let go of stories that you aren’t overly attached to because you may lose motivation, passion and purpose for them, and sometimes it’s best to keep going with stories that have a deep place in your heart because it’s a source of happiness and inspiration irrespective of reads.