be on cloud nine ()

Jacob is on cloud nine - he scored the winning goal!
After receiving the news of their engagement, she was on cloud nine, unable to stop smiling and feeling incredibly happy.
When he was offered his dream job, he felt like he was on cloud nine, knowing that all his hard work had paid off.
Winning the championship was a dream come true, and the entire team was on cloud nine, celebrating their victory with enthusiasm and joy.