Debating...

I am debating whether or not I should go back into truck driving full time. My friend (Murod) said that his drivers usually average $1000 a week in good months. Honestly I like the sound of that, but I don't want to mess up my life if I am wrong about switching back over... So my question is: how can I be sure that this will not be a mistake? I can handle small mistakes, but when the possibility of a mistake starts messing with my future I get leery. I just need proof that this will work out okay... The proof is in the pudding... Where is the proof? It is in the pudding. So then where is the pudding, so that I may taste the proof? Hehe Haha $1000 a week sure does sound good to me though.