I think the best way to overcome depression is to recollect or rethink on what is your purpose here on earth. You just need a break from reality, you need someone who you can talk with and share you feelings, heartbreaks, and problems. If you do not have family or friends to talk with there is God who is always willing to listen all day and all night. Tell Him whats your problems and go to sleep and I am sure tomorrow all of those things will be lessen and gone. Just don't lose hope because He will not give us problems that we can not overcome.