@zeloo777 I am known as the "tell it like it is" doula.
. I don't feel like it is helpful to birthing parents to lie and hide the truth from them. I approach truth-telling like I would want someone to tell me if the situation were reversed.
The truth: While there are magical unicorns whose extra weight melts off while BF, they are generally few and far between. Even if you look at the women in your family (Mom, aunts, cousins, grandma, great grandma) their experience will likely differ from yours.
I tell my clients that if they make the conscious choice to breastfeed (I use that language for a reason) that means that more than likely they will still have weight to lose when they wean. Dieting while BF more than not will decrease your breastmilk output. The same as being dehydrated will decrease your output. Your body cannot make milk without an adequate amount of calories and without your being hydrated. Period. That is just biology.
I suggest going to your ob-gyn and getting cleared to begin to exercise slowly. Get assessed for possible diastasis recti before you start as exercise can make it worse. Get a recommendation to a PT to assess your pelvic floor BEFORE YOU START EXERCISING.
When you are cleared start slowly. Walking. Yoga. GENTLE stretching. Understand and accept that it will take time to lose weight. Understand and accept that breastfeeding impedes weight loss for a reason. Give yourself TIME to adjust to the new normal. It will TAKE TIME.