Never-Ending Tiredness/Depression

Im 14 and female and recently over the last month ive been stuck in never ending tiredness. Even if ive gotten a good 10-12 hour sleep, i still feel like someone who hasnt slept for 2 days. Ive heard it may be a symptom of depression and that may be the case.

As ive said in a early post; im having troubles with a close friend who ive moved away from and hes quite depressed and has almost commited suicide, which does affect me abit but im not sure its the reason i self-harm (another reason that i may be depressed), i dont enjoy anything anymore and i get big mood swings where ill be happy for a day or week then suddenly feel the need to cut and cry non stop. Im not good at anything and my future looks hopeless. I cant think properly and i forget very easily and im constantly trying to help everyone around me, enough that when i cant help them i will cut myself from guilt, although that is not the only reason i cut.

I hate myself and i realy need someones help. Do you think i have depression/disorder? I appreciate any advice i get. Thanks.

[Fibinachi]

See a doctor, tiredness, loss of energy and cutting are are symptoms of SERIOUS DEPRESSION, if not treated this may grow worse until you are suicidal, be strong, and see a doctor.