Weight loss help!

I was on nexplanon for two years and just had it removed last week, well during these last two years I've been exercising, dieting, anything I could do to lose weight and just can't freaking lose it! I went from 170 after having my youngest to 231.8! And guess what I'm still not loosing any weight, even after having it removed! Please any tips or advice would be amazing! And yes my dr checked my thyroid yesterday as well as diabetes and I'm not diabetic.

UPDATE: I have hypothyroidism that she believes was caused by the implanon and will be doing more tests next month, but atleast now I know 😊