You can't save toxic people. There's a difference between damaged and toxic and it's important to see the difference. Damaged people may heal and may care. But toxic people are reckless, indifferent, and destructive. They do what they want regardless of what the consequences are to others. You can't fix toxic people. It's logically impossible and they will absolutely ruin your life. If you have someone toxic in your life, you have to leave. You'll miss opportunities to meet someone else and waste your life away. You will lose everything important to you.