Key to losing weight: What should I be doing?

Be more specific in your goals. How much water, when are you going to go to the gym? Plan out your week what healthy food are you going to eat? If you don't know where to start with calories the best thing would be to track what your currently eating for a week and see what changes need to be made once you know where your starting from.
Smart goals are
Specific
Measureable
Attainable
Realistic
and
Timed
Wishing you great success.

Calculate your TDEE
Subtract 15%-20% from TDEE for fat loss
Calculate your Macronutrient intakes
Start a beginning strength training program
Incorporate cardio if desired (not required)
Eat whatever you want that fits your calorie goal and macronutrient goals
Everything that goes in your mouth should go in your food diary
Weigh and measure everything, don't guess
Drink plenty of water, at least half a gallon a day
Be consistent

All of the advice is good...I just finally decided that I'm really ready..downloading Beyonce's new album and videos on my ipad have also helped...when I feel like nervous munching or skipping a workout...I watch one of her videos and the admiration and envy pushes me in the right direction...lol...well at least the past week it has.

Zumba.

Pick one of those things and do it. When you've got that down and it's a habit, pick another one and do that. Pretty soon you will be doing all of those things, but don't try to start them all at once.

Bump

I keep saying I'm going to start drinking more water, counting my calories, going to gym but I always fail. Any suggestions?

Why, exactly, are you failing?

Hey there, okay so you want to lose weight/ keep motivated correct? My question to you is why? Why do you want to lose weight? P.s. There is a reason why I am asking.

What is TDEE?

All of the advice is good...I just finally decided that I'm really ready..downloading Beyonce's new album and videos on my ipad have also helped...when I feel like nervous munching or skipping a workout...I watch one of her videos and the admiration and envy pushes me in the right direction...lol...well at least the past week it has.

^^ This. Inspire yourself with whatever works for you.

I bought a pair of jeans that were too small. I left them out where I could see them. Once in a while I would try them on. They were so small I couldn't even pull them up. Finally one day they fit. The feeling was fantastic. Now they're too big.

Add something positive to your life every day. Walk further, do ten minutes more of exercise, try a new food for breakfast. Think of it as a new lifestyle not a diet.

I would say for 3-5 days do nothing different.....except log everything you eat, if you don't exercise, don't. Then, review your diary honestly. See how many calories you are consuming a day and from what, you will be surprised. Figure out where you can make a small, but meaningful change or substitution. For me, it was the realization that I was drinking away nearly 1000 calories a day on soda ~ I learned to live with diet instead, cutting all of those calories out. Make a small, but meaningful change in your activity level. If you joined a gym, set a goal. Work up to walking or biking for 20-30 minutes per day 5 times a week. As these changes become second nature, choose something else from your diary to make a change and slowly amp up your activity. When you feel that you have made sufficient progress and are completely committed to changing your lifestyle, start looking at your TDEE and creating a caloric deficit.

I think a major reason people fail at first is that they try to make too many unsustainable changes too quickly. It's too hard and not realistic for you to go to 1200 calories per day if you have been consuming 3000. Take it slowly, but be deliberate and steadfast in your actions. By no means is this a race, it is a journey and there is absolutely no reason for starting with the "all-or-nothing" approach.

Much wishes for your success!