Maybe it is not how many time you try, its about the function of suicidality as an aspect of our experiencing. Is it something to act on, battle through, use in some other way?
For some people having suicidal feelings is very traumatic and can take over their lives, debilitating their ability to live as they used to, not only can they suffer from trauma of the fundamental pain but trauma from the ideas and images and possibilities of suicide as a solution or action, as well as this there is the damage done to the individual's image and sense of self within their social network, and within their own concept of who they are.
If you are feeling suicidal tell someone. There are lots of people out there who are able to help in lots of different small and larger ways.
Warm wishes to you all
Hirondelle