Can anyone suggest any proven ways for weight loss?????

Hi everyone, I have been really obsessed with my weight problem. I am a 33 year old female and have gained 90lbs which makes the count to 210. I recently took out some of my summer clothes and they don’t fit me anymore!!! This is a real tragedy for me. How can I not wear the ones I adore...moreover the new look is getting me mad (with the comments from my friends). I know quite a few ways to start losing weight…….but I don’t really feel that, with so many people failing using these methods that