Here are some steps to get started with deep breathing:
Find a comfortable, quiet place to sit or lie down. Place one hand on your chest and the other on your abdomen. Inhale slowly through your nose, allowing your abdomen to rise while keeping your chest relatively still. Exhale slowly through your mouth, letting your abdomen fall. Repeat for 5-10 minutes, focusing on the rhythm of your breath and trying to clear your mind of distractions.