what if I think I could be the best hitman ever?
What makes you think that you'd be a good hitman?
I'll need to make sure that I've got the stomach for it first, but I think I could do it.
You should always have confidence in yourself that you can do anything that you put your mind to. However, there's nothing positive about wanting to kill others for money and you should pursue a career that won't see you potentially jailed or dead.
I know, but you gotta spend money to make money. Besides, I could get sick eating chicken everyday. I don't think it's a bad idea and it'd be fun to spend 2 weeks in training before starting a job.
Your confidence is wonderful. However, you should consider the consequences of a job that requires you to hurt or kill people. This is not a desirable position.