Girls, how did you lose weight after childbirth? I gained about 22 kg …

Girls, how did you lose weight after childbirth? I gained about 22 kg during pregnancy ? but I ate not like an elephant, just somehow it went off, considering that I'm only 158 cm tall. Immediately after giving birth, I lost about 10 kg, so in these 3.5 months I lost another 3, I want to lose another 13 somewhere to be back in my pre-pregnancy weight and shape. I'm breastfeeding, the only physical activity is housework and walks with the baby, I think I should add sports, but I can't get there yet. I eat almost correctly, sweets, chips, etc., I don't eat them, maximum something floury