Coming up to Tisha B'av, id like to back up one of the thoughts ive read on GYE chizuk emails. It said there that if one should slip, then that means that the problem goes way back and that there is no need to feel that the y'h snuck up on you, since you were already "diseased."
In conjuction with Tisha B'av, Id like to note the gemara that says that nevuchadnetzar was grinding milled flour. Meaning, that the bais hamikdash was already destroyed in spiritual sense, so the physical was a mere manifastation of the fact. So too with us, we can rebuild our soul, with the correct actions which create a new sheild for our neshama and be zocheh to true Chairus!