system
guilty: I remembered when I stole money from my mum,  so I felt so bad
human
I really felt so bad when I remembered how I stole my mum's money and my brother was punished for it
human
Maybe it's time to clear your conscience so you won't have to feel so bad anymore.
human
I'm trying so hard seriously 
human
You can't change the past. All you can do is learn from it. If you are sincere then your family will forgive you.