How do I get my happiness back? I'm fat and depressed...?

1st off your 28, that is young,but old enough to do fun things still, first off if you eat fast food, eat chicken Soft tacos at taco bell, no fried stuff, subway chicken or turkey sandwiches, no mayonnaise, start walking, go to the gym, walking then lite running works best, before you know it you will be smaller, don't get too small, guys love , don't get discouraged, you can do it.