Even One Who Has Fallen May Not Be Silent
On the verse that the dead do not praise Hashem, the Rizhiner taught that a person who has fallen should still praise Hashem and trust Him to renew his strength.
The verse in Tehillim says that the dead do not praise Yah, nor do any who go down into silence. The Rizhiner read it as a lesson for the living. Someone may feel that he has gone down and fallen, in body or in spirit, and conclude that he has nothing left to say to Hashem. The Rizhiner taught that a person who has fallen is not excused from speaking: he must not stay mute as though numbered among those who go down into silence. Let him praise and thank Hashem, and trust in the compassion of the Creator, Who is merciful and gracious. Hashem will renew his youth and bring him back with strength, vigor and health. This is cited in Yismach Yisroel, where it is joined to the verse about Yaakov lying down and not being afraid.
Source: Yismach Yisroel (R' Yerachmiel Yisroel Yitzchok Danziger of Alexander), Vayeitzei, maamar 6, on Tehillim 115:17, cited in the name of R' Yisrael of Ruzhin
If you feel you have let yourself down lately, in davening, in your temper, in your habits, do not wait until you feel worthy before you speak to Hashem. Today, in whatever words you have, thank Him for one thing that is still good, and ask Him for one small step forward. The Rizhiner taught that silence is the wrong answer to a fall. A short, honest sentence from the low place is already a way back up.