@Benanything gave you the hard truth. A little harsh? Maybe. But everything he said was advice that will definitely put you in a better place than you currently are.
You need to do physical activity everyday. Go for walks, do some simple bodyweight circuits, etc. Do a simple program like the 5/3/1 that he linked you or starting strength.
Do not add anything to these programs, do them as written. Just be sure to be moderately active on your off days.
You have some significant body fat to lose. Choose healthy whole foods and consume in moderation.
Protein: Chicken, Beef, Fish, Turkey, even Protein Powder
Carbs: Potatoes, Rice, Sweet Potatoes, Quinoa
LOTS of Vegetables with every meal
Be aware of what you are drinking, you may be drinking a lot of your calories.
Be consistent in the gym and with your nutrition. This stuff is a lot easier than you think. Train hard, eat healthy. Rinse and repeat.
Again, like Ben said, go try these things for 3 entire months no cheats, not skipping workouts. I guarantee you will make amazing progress. If you want it, it is yours for the taking. You just have to make up your mind and stop making excuses for yourself.