Who do you have compassion for? Everyone is wired differently and certain things cause them to grieve more than others. Is it a sick child, homeless person, bullying? God made our hearts different for a reason. He made us different from anyone else. Pay attention to what causes your heart to ache and that may be your outreach.
From heaven the LORD looks down
and sees all mankind;
he who forms the hearts of all,
who considers everything they do.