3 months postpartum body

so i’ve been doing cardio, weights, eating right, moisturizing, and scrubbing and my post partum body is not at all where i want it to be. i gained 40 lbs in pregnancy. my stomach is getting better but i can’t seem to get rid of all the extra weight in my arms, legs, butt, back, and chin. it’s really taking affect on my self confidence especially because i was so skinny before pregnancy. any advice?? this is before pregnancy and now at 3 months pp