be ecstatic about...
His wife gave birth to their first child, and he was ecstatic about it.
I'm so happy. I don't know what to say.
Could I be any happier than I am right now?
What an incredible feeling.
I'm about ready to jump out of my skin.
I'm so happy. I can hardly contain myself.
That's fantastic news.
What wonderful news.
That's music to my ears.
I can't tell you how happy I am to hear that.
I couldn't be more pleased satisfied/content.
I'm as content/satisfied as one could be.
I'm completely satisfied.
A: Check this out. I just got accepted to grad school.
B: That's fantastic. What a great feeling that must be.
A: That's for sure. I'm walking on air right now.
B: Well, you worked really hard, so you deserve it.
A: Thanks. When I show my dad, he's going to be ecstatic.
被录取可以说"be accepted to"或"be admitted into"
"walk on air"表示“洋洋得意”或“飘飘然”。
"You deserve it."表示“你值得拥有”，或者“你活该”。