it depends on whether you have savings
a lot of people try to ctb, get si (survival instinct), are unable to ctb, or ctb and fail
the percent of people who succeed when they attempt is very small
in 2022, about 1.5 million people in the US attempted suicide and about 50,000 died from their attempts.
50,000/1500000=5/150=1/30= a little over 3 percent
You have a 97 percent chance of failing your suicide attempt if you are able to get past the survival instinct if you are a USA based person and if you have the same survival rate as an average person who attempts
my guess would be that of people on SaSu who attempt, 50 percent succeed, however, so it may be more likely for you
you could also just do a delayed send email that you are quitting and have to quit immediately due to an emergency and you are sorry for the inconvenience if you don't tell them now. that way if you fail, you can can cancel the delayed send email