The secret to a life of happiness is living with Bitachon and Emunah (Faith and trust in Hashem) when a person lives with this full time then he gets to be the happiest person in the world cause nothing in the entire world can effect him. Even if a robber steals from him or someone injures him he doesn’t say let it be a forgiveness cause he can’t run after the thief or person who injured him but he says it cause he truly believes that it’s for his good and directly sent from Hashem. Such a person is allergic to one word and that is daaga/worry that man has no worries and is the happiest man in the world knowing that everything Hashem does is for his benefit and ultimate good.
Make for yourself a daily learning Seder of the Sefer chovos halevovos (duties of the heart) which they have in English too and change yourself over to the happiest person and say goodbye to all stress and depression forever
I wish you lots of Hatzlacha ahead