as it is written: "None is righteous, no not one; no one understands; no one seeks for God. All have turned aside; together they have become worthless; no one does good, not even one."
Romans 3:10-12
but God shows his love for us in that while we were still sinners, Christ died for us.
Romans 5:8
So based off your situation it's okay to not try to be nice because of that? My point is that you can't let your situation define who you choose to be.