How to overcome my rebellious attitude towards the work assigned by my boss?

The problem now is not why the leader sent you here this time, but that you have a bad relationship with the leader, which led him to send you without considering your ideas. If it is a small group or a good relationship, he will ask for your advice in advance! No matter what clever way you use this time, I think people are not fools and will see through it, which will be embarrassing. A good way is for you to find an important person to say hello to him, tell him about your difficulties, make him feel that you are not aiming at him, it is really difficult, and then the middleman and the leader can fully express their feelings or any suitable opportunity, such as holidays, to make up for it.