Our store manager is selfish and self-reliant. What should we do?

There are many people like her, and what kind of people should be treated in what way. If you want to continue working here and develop in the future, then I support you to reflect this situation to your company. It is best to do it with other colleagues. (Remember not to involve threats, such as "If something happens, we will quit, etc.") Speak your mind and let the leaders above know about you. You can only fight for opportunities by yourself. You can also think of things, opinions, ideas and suggestions for your store to improve the system.