Horrified at what he had become, Carlisle tried killing himself many different ways, but all failed due to his vampire power and strength. One night, unable to endure hunger any longer, he fed on some passing deer. By doing this, he realised he could avoid feeding on humans, and so he committed himself to resisting his blood lust and to becoming a doctor, to look after humans (which is also something which vampires usually do not do. Vampires usually want to hurt humans, not heal them.)
not eating and starving himself
Bethenie Korn: Starvation, jumping from incredible heights, drown himself in the ocean
he tried to starve himself, drown himself, and jump off a cliff. he did not try to commit suicide by making himself bleed to death.
in the first book, twilight.
At first when he knew what he was, he went into a dark tunnel and hid himself in alot of potatoes. Then he tried to drown himself, starve to death,and he tried to kill himself by other things I can't remember
Carlisle Cullen
Edward.
He jumped from great heights and tried to starve himself.
every way he could think of.
He tried jumping off a cliff and starving himself and something else I think.
Edward Anthony Masen "Cullen"
He hasn't tried NOT to kill himself. He has tried to kill himself many times but decided to live as a 'vegetarian' vampire feeding on the blood off animals in stead of being a monster.