I've Had Enough by Paul McCartney is a rock song about frustration and the feeling of being pushed to the breaking point. The lyrics deal with themes of disillusionment and standing up against mistreatment or overwhelming situations. McCartney expresses a sense of liberation and determination to move away from negative influences. Key poignant moments include the repetitive chorus 'I've had enough,' which emphasizes the buildup of frustration, and the verses that detail specific grievances and moments of realization.