Is it possible to break my nose without pain so I can put it back in place? (photo)

A rhinoplasty is required to reset the crooked nasal bones by placement of osteotomies in them. This must be done under general anesthesia by a board-certified physician anesthesiologist. Patients simply cannot tolerate the amount of pain it would take to straighten them without being put to sleep with a formal surgery. For many examples of broken nose repair in our practice, please see the link and the video below

Your question can only be properly addressed following an in-person consultation. Your nose needs to be carefully examined by a board-certified plastic surgeon who can then determine whether you require a reconstructive rhinoplasty. 
An examination and possibly a CT scan can determine the extent of the fracture and deviation. From there your surgeon can suggest a plan which can include surgery. If your airway is not compromised then you can decide if you want a procedure to correct the external appearance of the fracture or deviation of the nose. Insurance often pays for the procedure if there is significant airway restriction. Often a cosmetic rhinoplasty can be performed at the same time. 
An in-person exam with a board-certified plastic surgeon is always the best way to fully assess your needs and address your concerns. Best of luck!