以下是一些表达心情好的常用语句：
1. I'm feeling wonderful today!
2. I'm in a great mood today!
3. I'm feeling really happy today!
4. Today is such a great day!
5. I'm on top of the world today!
6. I'm feeling fantastic today!
7. I'm so happy I could burst!
8. It's a beautiful day and I'm loving it!
9. I feel like everything is going my way today!
10. I'm full of positive energy today!
