The experimental group engaged with the mobile application use for four weeks, with specific tasks including completing the four mandatory courses within one month and submitting at least two health records and online posts every week.

The control group participates in the offline group intervention that last for four weeks. Participants in the control group will participant in four weekly workshop that last between 1 hour to 1.5 hours.

The experimental group engaged with the mobile application use for four weeks, with specific tasks including completing the four mandatory courses within one month and submitting at least two health records and online posts every week.

The acceptance of illness identity was measured using the Illness Identity Questionnaire's acceptance sub-scale, consisting of 6 items (Oris et al., 2016).

The maintenance of former social identities was measured using the Maintenance of Group Memberships sub-scale of Exeter Identity Transition Scales (Haslam et al., 2008), encompassing 4 items.

The new meaningful social identity was measured using the New Group Memberships sub-scale of the Exeter Identity Transition Scales, which includes 4 questions. Responses were rated on a scale from 1 to 5, with higher scores indicating a higher level of acceptance of the identity.

Health related quality of life was measured using the Short Form Health Survey 12 (SF-12) (Jakobusson, 2007), which includes twelve questions. Each item is transformed into a scale ranging from 0 to 100 according to a specific scoring algorithm. These scores are then aggregated to generate two summary scores: the Physical Component Summary (PCS) and the Mental Component Summary (MCS). The resulting scores are norm-based, comparing an individual's health status to population norms. Health related quality of life is calculate as the summary of PCS and MCS. Higher scores indicate better health related quality of life, with scores around 50 representing the average.