I seriously see no reason to live long enough to see my next birthday.
Why would you want to end your life?
I don;t care about my life, why would I want it to be any longer?
Not wanting to see your next birthday is a really dark, gloomy and dangerous thought to be having. I really think you should talk to someone about it before you do something you can't take back. We're here for you and would be really hurt if you were to not be around anymore.
I don't have anyone in this world.
I am so sorry, but that is why suicide hotlines and therapist exist. Please reach out to them, I think you'll find it really beneficial.