Still haven't lost weight

So I'm almost 6 months postpartum and exclusively breast feeding. I was 165 and 5'9 before I was pregnant and the day I went in to be induced I was 254! I am going to be 6 months postpartum on the 14th and I'm currently 225lbs. I've never been this big before in my life. The 165 was the most I've ever been until now and I'm so frustrated with my extra weight. Anyone have any tips? Anyone with the same struggle? ☹️☹️☹️