The present study examines the attitudes of 382 Spanish pre-service teachers regarding their own mistakes as learners, their frustration intolerance, and the use of errors in their future teaching roles. Findings showed that pre-service teachers in early childhood and primary education are less likely to embrace errors and exhibit higher levels of frustration intolerance compared to their secondary education counterparts. In addition, these traits were identified as significant predictors of teachers’ attitudes towards their own mistakes. The results suggest the need for specialized teacher training programmes that equip pre-service teachers with effective error management strategies for classroom use.