You have to change your lifestyle. Or even better mentality AND thus lifestyle.
Example; i hate going to gym its boring and monotonous VS I absolutely LOVE the gym, work out get my adrenaline pumping and ofcourse witness some of the greatest female bodies in town.
Once you think like the latter, you'll be much more strict with your diet. Again, i know plenty of dudes that dgaf ,like both fitness and food .
There are plenty of healthy foods. Start by getting a blender to make move smoothies (with spinach!) . A blender is equal to the cost of some MC D shyte.
Make a lost of shyte you eat, count the calories and you have a starting point. But the main ingredient to success is a shift in your mind. I lost 12 KG in 6 months by the way this year. I am not talking just to be talking