When it comes to films, people often don't differentiate between the message of a bad central character and the message of the film itself. They are two separate things. ↗
You're creating a different world and the actor's job is to be able to convince the audience to enter into that world, whether it be actually something that you recognize from your own life or not. ↗
One of the things I learned the hard way was that it doesn' t pay to get discouraged. Keeping busy and making optimism a way of life can restore your faith in yourself. ↗