Not sure if you're serious. So if you believe that, why haven't you already killed yourself? That would be the best you could do, right? Unless you have some plan to 'take out' others besides you. But I can't believe you really believe that.
No, the best I can do is continue living and convince as many people as possible to not have children. If I kill myself now, many more people might be created than if I die later. Natural reduction in population without resorting to violence is entirely possible. Open your mind to ideas that don't involve killing anyone.