Is it possible to do a vaginal surgery to make my vagina look normal again?

The photos are fuzzy and don't reveal much. Your description of what bothers you is equallly fuzzy. It would help if you could be more specific and provide better photos. However, a consultation would be the best idea of all.

there are several ways you can safely change the appearance of the vagina. Sometimes the inner labia need to be reduced or the outer labia enlarged in order to achieve an "ideal" appearance. Best to find a trusted doctor who can help you with an exam and a consultation. It's not from masturbation but rather just from hormones and development. 

Thank you for sharing your photos and your concerns. It is difficult to see from the photos exactly what concerns you. Is it that the labia minor are enlarged? These are the small lips at the opening of the vagina. If they are enlarged a qualified gynecologic cosmetic surgeon can assist you. It is unlikely that masturbation caused the issue.