Yes, you're not his mom or his keeper. Let him succeed or fail all on his own. If he wants your help, he'll ask for it. Until then.... not your job search. This mentality goes for your kids too, even though you are their mom!!!! lol
Seriously - you can give him a pointer or two, but then back off. he will need to do this all on his own. And yes, it's really really really really hard. I still struggle with being naturally organized, which I think EVERYONE would benefit from... but really it just pisses most people off.
So you can have a conversation with him that if he wants your advice, you are more than happy to help but you trust him can't wait to celebrate when he gets his job offer. But that's it.