I wouldn't mind ending my life
Why do you want to die?
I feel kinda useless in this world
You may feel like that now but you have a whole life where things could change. Death is a permanent problem to a temporary solution.
Fine, I will not kill myself, but I won't try and help my depression.
If you feel unable to control your emotions you should talk to a professional. If you feel embarrassed they also have anonymous hotlines where you can talk to someone.