Weight loss

I need some help ladies last year I was a size 4... I lost a pregnancy pretty early on but with hormones and such I continued to gain weight and I look like I have a baby belly still.. I want to lose weight to get healthier and try again and to feel good about myself. I've tried cutting carbs.. It was so hard to do.. I've tried gluten free.. And I did have a gym membership but I'm honesty so busy going to culinary school and working I canceled my membership because I didn't have the time to go.

Anyone have some tips on helping me start on loosing weight. The black and white was me a year ago and the other picture is me at Christmas :(