وعليكم السلام والرحمة الله وبركاته
لاحول ولاقوة إلا بالله العلي العظيم
The above duaa will take away all the paranoia, and depression.
This duaa is also recommended
الهم إنى أعوذ بك من الهم والحزن و أعوذ بك من العجز والكسل واعوذ بك من الجبن والبخل وأعوذ بك من غلبة الدين وقهر الرجال
Sheytaan is the biggest enemy of human, & Waswasah (whisperings) is one of his weapons which destroys the Eemaan of a Muslim, weakens the connection with Allah, makes a Mo'min hopeless & enforces him / her to forget that Allah is The Most Merciful, Forgiver of sins.
Waswasah may also create depression & Anxiety disorders, it is against the nature of a Muslim that he / she can suffer with such kind of ailments, Allah is our Creator & He is the One Who Makes us laugh & cry, whoever tolerates the TRIALS with Sabr (patience) & Shukr (thanking Allah), he / she will gain the Kamaal (completion) of Eemaan.
Being the Sunnah of Prophet Muhammad Sallallaho Alaihe Wasallam, it is the power of Hijamah that it crushes all evils; including Waswasah. Hijamah as 5 points (Haamah, Yafookh, Qamahduwah & Akhda'ain) on the head is the most beneficial in this regard, & it brings concentration & pleasure in Salaat, recitation of Quran & Zikr.