• Telling a parent whose child has died to be happy that at least they can have children.
• Telling a depressed person to stay positive.
• Invalidating someone’s problem by saying people have it worse.

Instead try using these terms more :
• You are not alone.
• That’s really hard. Do you want to talk about it ?
• How can I best support you right now ?
• You’re allowed to be angry.
• You’re allowed to be sad.
• We’ll get through this together.