I don't want to live this life anymore
Why don't you want to live anymore?
I don't see the point of living anymore, should I?
If you find yourself having these types of thoughts, you are better off speaking with a professional. This may push you to make some changes to your life that bring you more happiness and joy.
Nah, I'll start killing people. I bet that after I kill 40 people, I'll feel better.
That would be an awful thing to do. I promise if you find some professional help it can really help you turn your life around.