Translation of "머릿속엔" in English

머릿속엔 오직 한 가지 생각밖에 없었거든요.

There was only one thing she could think of doing.

그리고 그녀의 머릿속엔 온통 그런 생각들 뿐이었습니다.

And in her mind, those were the only categories.