Unit 4 - Section 3: 〜ばかりだ
〜ばかりだ (nothing but / just started)
ばかり has several lives. Two you need here: “only / nothing but” after a noun or て, and “has only just V-ed” after the た-form.
最近、仕事ばかりです。
Lately it is nothing but work.
遊んでばかりいる。
He does nothing but play. (て + ばかり + いる)
日本に来たばかりです。
I have only just come to Japan. (た + ばかり)
ばかりか can mean “not only… but”. Do not confuse ばかり with だけ: だけ is a cleaner “only”; ばかり often adds “too much of that and not enough of anything else”.