how to face with manager that are selfish and not willing to share the credit and hard work result that we did it together

Dear User, I can understand how challenging it can be to work with a manager who is selfish and not willing to share credit for the hard work that you've done together. It's natural to feel frustrated, angry, and helpless in such a situation, but it's important to remember that you have the power to change it. Firstly, from a Buddhist perspective, it's essential to cultivate compassion and understanding towards your manager. Try to see their behavior as a reflection of their own suffering, rather than a personal attack on you. It may be that your manager is struggling with their own insecurities, fears, or past traumas, which are causing them to act in a selfish manner. By cultivating compassion, you can approach the situation with a more open heart and mind, which will help you to communicate more effectively. Secondly, from a psychological perspective, it's important to communicate your concerns to your manager in a calm and assertive manner. Start by expressing your appreciation for the work that you've done together and the results that you've achieved. Then, explain that you feel frustrated that your manager is not sharing credit for the hard work that you've done together. Be specific about the actions that you would like your manager to take, such as acknowledging your contributions in team meetings or performance reviews. Finally, ask for your manager's input and feedback, and be open to finding a mutually beneficial solution. In terms of coaching advice, I would suggest that you focus on building your own self-confidence and assertiveness skills. Practice speaking up for yourself in a calm and confident manner, and set boundaries around what you are willing and not willing to tolerate in the workplace. You may also want to seek out support and guidance from a mentor or coach who can help you navigate this challenging situation. Remember that you are not alone in this, and that there are ways to overcome the challenges that you are facing. With compassion, assertiveness, and perseverance, you can create a more positive and fulfilling work environment for yourself and those around you.