Depro Shot

I was going to get my first shot next week but now I am very reluctant. I have read all these testimonies and they scared me. I am 47 years and on BC pills . My gyn says that is a bad thing for my age and wants to put me on the shot but that sounds even worse. I wish I could just have the works taken out so I don`t have to worry about anything anymore. I am trying to lose weight now I dont want to gain any