I'm fat 😣

I am looking to lose weight.. I am doing my wedding pictures in October and getting married in November.. I am hoping to have my body baby ready and looking good for the pictures. I need help tho. I have no idea where to start. So I have turned to glow to ask all you beautiful ladies for help. I am 5'10 180 lbs I eat relatively healthy but could definitely be better. I already don't drinks soda or eat much sugary foods. And I'm started drink more water. I have heard the keto diet is the best. But I'm worried it's to expensive. I would really love advice.