I cant lose weight..

Check out the "Getting Started" section of the forums and maybe consider responding to one of the threads there. There are some dedicated people that would love to assist you.

The biggest advice I can give you is don't expect it all to change at once. This weight was not gained overnight and likewise you will not lose it instantly.

What you eat/drink is the biggest part of weight loss. Everyone has their idea of how much it impacts (you'll hear it's 80% diet, 20% exercise, or 90/10, or 70/30. Whatever) but just know that you cannot outrun a bad diet. Start by logging your food (what you currently eat) for a week or so and take note of whether you lose, gain or maintain weight over that week. Once you do this, you will be able to get an idea of how many calories to eat to lose weight. Don't go too low, too soon. Severely restricting calories does not necessarily equal faster weight loss, it just makes you hungry, cranky and prone to giving up and eating ALL the things, so make your changes sustainable over the long term. You don't need to suddenly eat lots of salads, grilled chicken breast etc etc. You don't need to cut out major food groups (like breads etc). Just eat fewer calories for now. Obviously incorporate veggies, fruits, lean meats, wholegrains but also allow room for the foods you like to eat, in small amounts. And drink plenty of water.

You also don't need to become a gym bunny overnight. Personally I don't do a great deal of exercise outside of caring for my toddler and the weight has come off anyway. Exercise, by all means, but don't stress if you can't do 5 workouts per week. Build up to it. Find something you love to do, instead of doing something you feel you HAVE to do.

You've already gotten some great advice in here.

Be patient. When the inevitable happens and you miss a workout or two, or eat over your cals, just start back up again. It's really not an all or nothing thing.

Just try to be consistent over the long haul and you'll get there. And try to take pride in your steps along the way. All progress is worth celebrating, not just the "after".

You're on a classic yo-yo. You restrict too much, go too hard, and it becomes overwhelming and you probably have some small breakdown, then decide that the day is shot, might as well have all the things you like, and never get back on the horse.

Obviously your history speaks for itself, the whole process is broken. You don't have to give up coke forever- or anything else. What you need to do is take one week, and track- honestly and accurately- everything you eat and your activity, but don't try to change your habits. You need to know where your starting point is.

Over that week, read the forums, and figure out what your TDEE is and how you should set your calorie goals. Here's a good place to start:
http://www.myfitnesspal.com/topics/show/819055-setting-your-calorie-and-macro-targets

Then you start working your plan. You should be a little hungry for a few days, but it shouldn't feel that restrictive. You should schedule workouts that you can actually fit in your schedule going forward. It really, really, doesn't have to be that hard. If you want to have a coke, you can have it *occasionally* with your exercise calories.

I know you want to get started right away, but I hope you seriously consider to take a week to establish a baseline and educate yourself, it will help you slow down and break the yo-yo pattern.

PS. Take pictures of yourself in a bikini or a sports bra and tight shorts (not underwear) you'll thank me later- when you post them in your success thread.

All this^

Log, log and log!

You'd be amazed at how much knowledge you can gain just by tracking your food and seeing what your macros come up to naturally. Then you can slowly focus on cutting away at the poor foods. In giving up some of the poor food choices you will gain good control of your blood sugars and you may find that you will crave those foods a lot less and be able to eat them in moderation as time passes.

The food yo yo is horrible and I was on it for years but as you can see from many of the success stories lots of people take years get the body they want. A lot of people have been posting stories this week about losing lots of their body mass and now focusing on toning up this year. Just keep working at it and you will find your goals will change over time. Work on cooking, grocery shopping and simple nutrition (fruits, veggies, lean protein). Then way later on down the line you can work on getting abs or a flat belly or whatever your ultimate goal is.

Baby steps! Good luck!!!