A Yid should be Machshiv his Tefila as if everyone is depending just on him. Every Tefila is a live bomb that destroys the enemy. And as you daven, you are creating Malachei Rachamim that bring major Yeshuos and great Bracha to the whole situation. The more you are Machshiv your Tefila, the better it works. אַל תִירְ אִי תוֹלַעַת יַעֲקֹב ישעיה מא יד Fear not, worm of Yaakov (Klal Yisroel is called a worm which relies only on its mouth, and Klal Yisroel is total Tefila). Our power is mainly in Tefila, as it says: הַקֹּל קוֹל יַעֲקֹב וְהַיָדַיִם יְדֵּי עֵּשָו תולדות כז כב the (power of the) “voice” belongs to Yaakov, and the “hand” (physical power) belongs to Eisav. (Gemara).
Don’t be afraid of being too positive. R’ Avigdor Miller Zatzal says: “Better a positive lie than a negative truth.” Always repeat good news, and don’t be afraid of being boring. The negatives are always repeated again and again because the Yetzer Hara loves negative news. That shows how “smart” and well informed you are (Redifas HaKavod). Keep saying: “Please Hashem, not one more casualty!” Again and again, repeat this! Keep saying: “Baruch Hashem, more and more Yidden are becoming frum!”