I fantasize about slitting my throat all the time
Are you thinking of slitting your throat right now?
Not now, but I woke up this morning with this thought.
It's not good to want to kill yourself. You should seek professional help if you're having these thoughts.
I'm not sure what you are suggesting. Are you trying to get me to kill myself? Because going to a professional really would send me over the edge.
On the contrary, I'm trying to get you to avoid killing yourself, or even thinking about it.  If you ever feel like you want to end your life, you should talk to someone immediately.  They'll be able to help you find what is bothering you, and to fix the problem.