Avoid material influence, degrading material influence. I pray to Srila Prabhupada that I can guide you properly.
Krishna doesn't put you into anxiety. You put yourself into anxiety. Krishna simply makes you go through your course of karmic reaction.
When you find any fault in someone, actually you take the qualities (faults) of that person.
As long as our consciousness is materialistic, there is no room for joy. However on the spiritual platform three things automatically happen: eternity, knowledge and bliss.