How fast my credit score get affected if I am late in my mortgage payments?

I have some credit cards opened and I don't want the banks start freezing them. I use them but I pay them in time. The only problem was with my mortage that, in order for my lender to help me, I must be late, but I am not yet.How fast my credit score get affected if I am late in my mortgage payments?
It will usually be reported to your credit once the payment is 30 days past due. There has got to be another way to get assistance without screwing up your credit.How fast my credit score get affected if I am late in my mortgage payments?
As soon as your bank reports the payment late.