When it comes to suicide, are those who use irrevocable methods more committed than those whose attempts can be thwarted?

There are about 6–8 common ways people usually commit suicide, like jumping from a bridge or other very high place, shooting themselves, hanging themselves, asphyxiation, etc. Some methods can be thwarted or reversed, such as trying to off yourself by way of a hose from the exhaust to the cabin of the car; someone can find you and yank the hose out and break the window letting air in of the door is locked. Same if you take a bunch of pills then down a bottle of wine or whisky, you can be discovered and saved before you expire. If you jump off a bridge, put a gun in your mouth and stove pipe your cranium, it is pretty much a done deal, and no one is going to be able to save you in the 11th hour. Those who use those irrevocable methods, do they seem to be more determined to die?