For this case we have to bear in mind that the main factor to solve a case of depression is to have the desire to get out of that situation, it is a personal decision.
Recommendations:
Go for a walk or exercise to increase self-esteem.
Feeding properly even when you do not feel like doing anything.
Distracted with friends.
Express yourself, say what you feel.
Have a positive attitude for any everyday situation.
Finally, you can ask for help from a professional therapist.