如果你想表达自己现在正在忙，你可以说：

"I'm swamped (right now)."
"I'm really busy (at the moment)."
"I'm overwhelmed (with work)."

你也可以说：

"I'm up to my ears in work."
"I have a lot on my plate (right now)."

这些表达方式都可以表示你现在很忙。