weight gain

feeling disgusted with myself. I've never been skinny and I've been ok with that. before I got pregnant with my daughter in 2014 I weight 153 lbs. I'm only 5'2. I was a little concerned with my weight then but nothing big. gained 30 while pregnant but dropped 20 as soon as I had her and the rest within a few months. Well here in the last few months I've been really unhappy with my body. my thighs are so thick I can't wear shorts above my knees or dresses because of the chafing and my stomach hangs, my arms are just a jiggly mess. I weighed myself today and I weigh 170 lbs. I feel so gross. my fiance tells me he loves my body and me just the way I am. we eat so unhelthy and don't work out and I don't receive any support from him when it comes to getting healthy. we have a tight budget when it comes to groceries and he works 12 hr shifts so by the time he comes home and on his days off hr doesn't want to be active with me. and none of this is an excuse for the way I am. I have let myself become so unhealthy and gain so much weight. I want to be a good example for our daughter and so far I am far from it. I'm just at a breaking point right now and need to get all this off my chest. I don't even know where to start to turn things around get all of this extra weight off.