How do you keep yourself motivated in this unpredictable life and challenges that come across our lives every day?

Is it okay to think you are better than your partner? I don't think I want my partner to fail at anything, and I always tell them that it's okay for them to be better than me.
How do small issues build up and affect our mood more than we expect?
How do you communicate boundaries to a dog that has never lived in a home before?
Do you think it's reasonable for arrested people to blame random persons for things that happened to them?