There aren't really any good people.
Aren't there, though? Are you telling us that you've never, in your entire life, met a single person who is good? If so, that would explain a few things. Knowing nothing but evil is obviously going to cause a great deal of mental stress and negative thinking. It's not your fault.
Atheists don't like religion because it tries to make them better people.
It's not so much that it
tries to better people as the fact that it so consistently
fails to do so. What's the road to Hell paved with again?