A Qualitative Exploration of the Process and Experience of Change in Moving on in My Recovery: An Acceptance and Commitment Therapy Based Recovery Group for Substance Use Disorder.

Moving on in my recovery (MOIMR) is a new, acceptance and commitment therapy (ACT) based group intervention to support recovery from substance use disorder. It was co-developed by, and is co-facilitated with, people in recovery. This study used a grounded theory model to understand the process of change experienced by individuals who completed the group programme. Ten individuals who were abstinent from substances following their participation in MOIMR were interviewed. The model that emerged depicted a chronological series of processes that centred around a core category of gains derived from approaching their emotional vulnerability by leaning in to discomfort (e.g., difficult internal experiences like thoughts, emotions, and physical sensations) whilst pursuing activities that aligned to what mattered to them. Initial key processes indicated that participants experienced a degree of suffering from substance use prior to engagement. Group safety was a key element in fostering connection, normalisation, and cohesion, combined with psychological understanding being significantly derived from those with a lived experience of substance misuse and addiction. Later processes reflecting core ACT mechanisms such as letting go, value-guided action, and acceptance of difficult internal experiences took time to develop; many participants reported completing MOIMR more than once as a means of understanding these components. Limitations, along with implications for clinical practice and future research are discussed.