Excuses why not to diet

I’m a 21 year old female 5ft and weighting an unhealthy weight of 182lbs yes I am very aware of my weight I know I’m over weight many doctors have told me this. I am very lucky that my weight has caused me no issues as of yet. I know sooner rather then later my weight will effect my over all health. I’m too small in height to carry that much weight. My weight is now effecting my mental health I’m becoming very self conscious I’m no longer happy in my own body. I am 21 so this is my prime time to live life to the full but I no longer want to leave the house because I hate myself. I’ve tried dieting in the past I’ve tired diet groups I’ve tried diet tablets you get what I’m trying to say ive tried everything and nothing works. I’m an emotional eater and when something happens I will always turn to food. I find dieting easy I love fruit and veg it’s not hell for me to eat healthy. So why am I 182lbs if I find dieting easy you may ask. Well the answer is I make excuses for myself for example I started back on a diet yesterday and now I’m doubting should I wait and diet Monday because I’ve a party Saturday I’m gonna attend there will be drink which is high in calories so am I better off waiting till Monday to start the diet. See what I mean I make excuses. I know people will say attend the party and don’t drink and the likelihood of a 21 year old college student attending a party and not drinking won’t happen (well for me it won’t happen). So I guess my question is how can I stop making excuses is it possible to diet but still live a social life (I don’t go drinking every weekend I might do it once or twice a month) I just need help I’m motivated to do the diet I want to change my lifestyle but I’m not willing to give up the little social life I have.

Any help would be great