NO! dont! most people who attempt suicide and live, regret they ever tried it!!! There is so much to live for and if your friend is making you think this way or is not helping you but hurting you, she's not a real friend! You need to talk to her about privacy and that if you have a problem, you will ask for help and she has no right to but into your business! Besides that... There is so much more to life than how you feel right now. There are going to be many gloomy days up ahead but there will also be amazing ones that are once in a lifetime experiances! Keep going and try to think on the brightside when you're feeling down again! have some alone time... do something thats good for you and makes you feel good!
good luck, hope I helped!
I Heart you