It's difficult to seek help when you're ashamed of your feelings. And honestly, people like you make things worst. Nobody is an "egoistic coward" for feeling sucidial. It is just natural to keep searching for happiness and ways to relieve your pain. It doesn't mean that the solutions you're considering are the best, but it doesn't mean you're a coward either.
The danger of culpabilizing a suicidal person is that it is probably the main reason why people kill themselves without telling a word to anybody. When something gets really difficult to admit, you tend to keep it for yourself. And one day, it is going to be too late: you feel the urge to relieve the pain now, on the spot: you've had enough for far too long. And this urge is so strong that you won't think of all the possible consequences: this is what we call a suicide crisis.
Don't be a part of the problem: help to prevent suicide. Please.
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