What Is The Treatment For Extreme Depression?

hi my name is makayla. and i believe i am depressed but i want to make sure im not just thinking it. i am very stressed due to my boyfriend, some friends and family issues. i have my own personal and financial issues too. also work upsets me a lot. there are more details between those. i cry every day at least 3 times or more. i always want to kill myself. i hate my life. i try to think of ways i can kill myself, i been to points of trying to hold my breath and not breathing, or holding a bottle of pills to overdose but never did, random things like that. i cut and burn myself on my upper side of my arm, and now i have scars there. i cut myself when a cigg doesnt do. today i really wanted to die, but my brother i think about and it stops me, and my best friends new born that i really want to be in her life. but i still want to die, i cut myself about everyday, i dont know what to do. i have anxiety and panic attacks a lot. what disease do i have? am i crazy? am i depressed?