Hi Orchid. Just wanted to add that there are many reasons for rejection that have absolutely nothing to do with the quality of your sub. Maybe they just purchased something similar, or they really need stories that feature a boy instead of a girl, or maybe a chicken instead of a dog
This industry is not only subjective, but is also a real heartbreaker at times. It's important not to take rejection personally. Just dust off that "well-written" story and find it a new home.