If you don’t think you can do anything to make a difference, start praying. Pray that God will give you the chance you need. Ask God for a way to share His love with someone. If you can tell one person about the hope of Jesus and they tell another person, eventually you can bring a lot of change.
Maybe we all need to hear sometimes that the way we act isn’t just hurting us, it’s affecting our relationships with the ones we love. If it doesn’t help to tell you to change it for you, change it for those around you. You don’t want to suck the life out of the people you love the most.