My depression has been worse for months. i have self harmed for 6 years. i cant cope any more, i think of suicide everyday and become very emotional.

Major Depression: I understand your distress. Traumatic experiences with unresolved feelings of hurt, resentment, shame, guilt and stresses of relationship with parents, siblings and boyfriend; separation, peer pressure to use alcohol and drugs; school,; and to establish your Identity can cause depression with hopelessness and despair. Your Life is Precious! Go to ER and have Inpatient Psychiatric Treatment

Hope: Depression, including depression with suicidal thoughts, is generally highly treatable, even if 6 years present. But it will involve treatment from a professional, and you will need to see one. It sounds like you need to do so quickly.