There was something I was taught when in nursing classes with injections. Once you start the needle-into-person motion, you're committed, you don't hesitate, you don't stop, you follow through. If you hesitate, issues could happen. Almost every nursing student hesitated, I and a few other were like "stab, draw back, inject, remove, band-aid" with no hesitation. The nurses were shocked, but it was our mindset--they needed shots, we had the shots, we were giving them that's how it was, we were confident.
I kind of view suicide like that. When you're ready, you may have just that same process, no hesitation, no stopping, follow through. If you hesitate, undesirable things can happen.
Mr personal thoughts being that if you still have things holding you back, you should address them if possible. Maybe you'll find another path, or maybe you'll find that there is nothing holding you here, and you won't have problems.
There are so many factors to suicide, in methods, etc, that I hope you can find some solution that fits your problem.