Any women struggling to lose weight after the Depo Shot?

Are there any women who are here because they are trying/struggling to lose weight after taking the Depo Provera birth control shot?

I took the shot for six months and stopped in September last year. Since my second shot I have gained four kgs, and I am only just starting to get back into diet and exercise. While I was on the shot, I found it impossible to lose weight, so I figured I would wait a few months before I hit the gym again.

Does anyone have any advice on how to lose weight after being on Depo Provera? If you also gained weight from Depo, how long did it take you to finally lose the extra weight?

Any advice you can give me I would really appreciate! I've been researching online blogs and a lot of women have said it's impossible to lose the extra weight, and I refuse to believe I will not be able to get back to my original (skinny) self. Help!