How to be fit? And more impactful.

I am an IT student and I want to cut my belly fat and upper hips fat which is becoming too much now a days plus want to increase my stamina. Given that I sleep for min 5 to max 7 hrs and have a glass of milk atleast once a day.I have carbs as my breakfast and lunch and sometimes at evening snack too due to mess and I prefer khichdi n daliya for dinner or else skip dinner. I code till late night so don't have time to exercise in the morning or evening. I am working for a startup so my schedule is quite much n I have a cup of coffee once a day. Fruits and water intake is not as much as needed. At times I feel weak and unhealthy physically which makes me unhealthy mentality too. Please suggest me some diet and routine plans for the same. I am thinking to go for cow urine therapy/Aloe Vera  for my constipation, please suggest which one is better,long lasting and more impactful.