be all in (one's/the) mind

To exist solely in one's thoughts, rather than in reality. Don't tell me that my worries are all in my mind—you know this can be a dangerous area. Your presentation sounded great, honestly. Your fears are all in the mind.

Common Names:

Name	Pronounced	Usage
Endika	-	Basque
Ally	['æli]
Wenzeslaus	-	German
Gillian	['dʒiliən]
Radhika	-	Hinduism, Indian, Hindi, Marathi, Gujarati, Malayalam, Kannada, Telugu, Tamil
Bittor	-	Basque