Nice, a good thread for once.

To the people talking about a lack of willpower, this is largely due to a bad diet and a lack of exercise.
Your body has become used to inaction and inaction quite literally causes depression.

Cooking your own meals (and eating your veggies) will already make a huge difference in your way of thinking.
Learning to love cooking is gonna be a huge help in motivating yourself.

If you have the money for it, a slowcooker/crockpot is the easiest way to make delicious meals without too much effort.
Just look at pic related. It looks great, tastes delicious and is actually healthy for you:
https://www.cookingclassy.com/slow-cooker-chili/