How to kill myself painlessly?

I'm a 15 year old girl
i know you will say:"think about your family", but my family is the reason.I
I used to have all grades A's, school was one of the only things i was good at, but now at the end of the first semester i have 1 C and 2 B's. I go to a private school/college, and it is a really strict school and the reason why my mom sent me there's to learn german and to have the chance to go and study in germany, but i lost my chance, i try so hard but german grammar is just so hard. But when i had all A's my parent never, i mean NEVER said well done or anything, all the other kids got iphones and things if they had all B's, but i didn't wanted anything, i just wanted them to be proud of me, i wanted them to say"well done, we're proud of you, but no. That never happened, my teachers and friends always said:"god knows how proud and happy your parents are for you, wonder what they have planned for you", i just smiled and never answered them. And i also can't stand my mom saying everyday things like:"you are the worst kid in the world, you have failed your life, you are worthless, you have no future, i just wanna go away from you, you will give me cancer". Maybe she is right, she had all her hopes on me and i failed her, i don't deserve her…
i only told you my story so you won't try to help and say i'm just an attention whore, just please tell me if you know a quick and painless way to kill yourself,(without a gun because i don't have a gun and i don't think i can find one)

There's just one least painful way to die, and that's called living.

you might say "who the hell are you to say something like this, you don't know me, my problems and etc etc etc"

Well I'm someone who once tried to take away my life too. Ended up in the icu. Believe me it's not worth it!

wanna know the secret of a happy life? Be happy. Yes, it might sound crazy but just be happy.
if your mom yells at you and talks sh*t about you, there are two ways to deal with it. Talk to her about how you feel. Or the other way which i like and do the most. "Hear from one ear and loose it from the other.":)

Do your best in life coz one day we all will die. Why dying early when you know that you will die no matter what.
you failed, its ok, try again. Don't wanna try that then try something else! But don't try to give up on living.

You don't like the way you mother talks, talk to you father. Stop talking to her. Tell your father how you feel. If not to your father then talk to someone who makes you feel comfortable.

and hey if you don't know german, the world will not end. And yeah one last thing "marks/grades won't decide you future"

Drita… You are only 15… Please give your self time before you kill your self… I was 15 once and I thought the same thing… Because of my family… I even tried it trice. Thank god it wasn't my time… Now I'm in my 50shave 7 grown kids and 23 grand kids… Lots of fun… And yes some of my kids through about killing their self… I'm telling you this because it is ok to think about death, but there's lots and lots of living you get to do. And soon you will be 18. And on your own… My granddaughter is 15 and loving it, she dating running around with friends planning her wedding (she hasn't gat a boyfriend yet but she is steal planning it after she gets done wit the air force… She say planes may change but she enjoying life now looking forward to it all. And there's so much to do in life, some day you will be telling you children the same… You have dreams to see and do and trips to take and flowers to smell. Please give your self a chance to see what can and will be like after you leave home and you are your own boss.remember you can be and do what ever you want…