also: どうしたもんか
expression
what should I do?; what is to be done?
A set phrase expressing indecision or worry about how to handle a situation. Often used when the speaker is at a loss or seeking advice.
こんなに遅くなってから、どうしたものか。
What should I do now that it's gotten this late?
彼に本当のことを話すべきか、どうしたものか。
Should I tell him the truth? I don't know what to do.