。
We're torn about whether to go to college.
Literal
We [topic-は] university [to-へ] go should [or-か否か] deciding-unable.
べきか否か ('whether [to] should or not') is a literary/formal pattern — べき ('should, ought') + か ('question') + 否 ('or not') pairs an obligation modal with a binary question. 決めかねる ('unable to decide') uses the negative potential suffix ~かねる attached to a verb stem, meaning 'find it difficult to / cannot bring oneself to.' Both elements are formal/written-register.