weight loss after baby

So I gained 50lbs total when I was pregnant and 10 with marriage (I have one kid)about a month after giving birth I loss 25lbs I was excited then I gained it all back😫😫🙄it's been 2years plus now and it's so hard to loose it all. I would loose 10-15lbs then gain it back!! Now I'm down 21lbs praying I won't gain any back n continue to loose weight until all the 60lbs is gone. Before pregnancy I loose weight so easy and kept it off ugh...