You have the answer right here. Her parents did everything for her. Went to teachers and coaches and fixed all her problems for her. And she absolutely cried to them first because she couldn’t understand the teacher’s assignment or the coach was mean to her. Parents got involved and viola, problem solved. And now she is doing the same thing to you. She cries and you solve her problem. She’s too old to be behaving like a 10 year old. She absolutely needs therapy and may have a hormone imbalance, but it is just a habit at this point. Talk to her and point this out to her. But first tell her you are going to have a serious discussion and she can’t cry. Tell her she has to see a doctor and she has to stop crying over everything. Tell her she can learn to control it because you can’t handle it anymore. It is not adult and it is not attractive. Let her know you can help her with any problem she has but not if she cries first. She has to realize what is wrong, know her limits and ask for help - without crying. It won’t change overnight, but it will change if she wants to. Make sure she knows you will not listen to her cry and won’t fix her problem if she does. She can cry in her pillow or cry to mommy and daddy, but not to you. And if she doesn’t stop, it has to be a dealbreaker. You need an adult relationship.