Losing weight while breastfeeding

So you hear a lot that people lose the baby weight while breast feeding and how women “snap back” to pre pregnancy weight.

My question is can you lose more than pregnancy weight? If you went into pregnancy already overweight is there a chance you can lose all the weight while breastfeeding?

I’m working on losing weight right now and my doctor said I can safely lose weight in the first 3 months of pregnancy before I need to be gaining anything but I need to lose 60 pounds to be back in healthy weight range.