No, it is not appropriate to share such personal and private stories. Masturbation is a very private matter, and sharing such stories violates personal privacy and social norms of propriety.
If someone believes masturbation has ruined their life, they should first understand that it's a natural behavior. It becomes a problem when it starts to affect other aspects of life like productivity or social interactions. Maybe they have developed an obsessive - compulsive pattern. In such cases, seeking professional help, like talking to a psychologist or a sex therapist, can be beneficial. These experts can help the person understand their relationship with masturbation and guide them towards a healthier lifestyle.
No, not in general. As long as they are private and not interfering with one's daily life or relationships, they are a normal part of human sexual expression.
No. Teaching masturbation stories is completely inappropriate and violates moral and ethical norms. It involves private and sexual topics that are not suitable for public discussion or teaching.
Well, first of all, recognize that these are private thoughts. You can journal about them in a very private diary if you feel the need to express them, but never disclose them to others. Also, try to lead a balanced lifestyle with regular exercise, good diet and positive social interactions, which can help you better manage these private thoughts.
It depends on the context. In a private, consensual conversation among adult friends who are comfortable with the topic, it can be appropriate as it's a form of sharing and communication. But in a more public or professional setting, it's usually not appropriate.