We all have a much greater impact on other peoples lives more that we think. Just watch the movie 'It's A Wonderful Life"....being serious.
To me life is about how you interact with other people. Whether you treat them with the dignity and respect we all deserve. I used to get very upset over things going on in my life until I started reading the New Testament (NIV). You don't even have to read the whole thing, just the first four gospels. Anyone can benefit from it.
Just remember "the golden rule".
"What have i done.? Is it too late to save me from this place? From the depths of the grave? We all are those .. who thought we were brave."