fun fact for the future: someone being suicidal is not your problem and you should not try to help beyond referring them to helpful resources
theres a reason mental health professionals are PROFESSIONALS and not just random kind people
you are (likely) not trained to handle this situatuon and thus should not engage in this lest you experience real trauma or worsen the other persons situation
so do not kill yourself in the process of trying to be the sole force stopping them
edit: felt the need to add
if someone you know is experiencing suicidality, oftentimes the best and safest choice is just to make plans
suicidality is, in the majority of cases, spurred by short-term issues making people feel trapped in their current situation
so plan things with them! plan going out to a concert or restaurant! plan how they can enjoy life in the future!
this is something i feel VERY strongly about because of my own past experiences with feeling the need to "negotiate"
keep in mind im not saying you cant just talk about life with people expressing these ideas, just make sure the conversation doesnt turn into a "negotiation"
ty for reading my long ass comment thats indirectly about my own experiences i love all of you lemmings kthxbye <3