Table 1.

Intervention content

Main intervention
Session	Content
1. Introduction	Goal setting and importance of pleasant activities
2. Tackling problems	Identification of problems and problem-solving based on behavioural activation
3. Psychoeducation	Psychoeducation focusing either on depression or anxiety depending on individual needs
4. Cognitive restructuring	Development of functional positive thinking after identifying the relationship between thoughts, well-being and practising strategies
5. Choosing most prominent symptoms	Problem-solving targeted at either depression or exposure to anxiety-provoking stimuli depending on individual needs
6. Deepening of skills chosen in session 5	Problem-solving and exposure in daily life
7. Plan for the future	Reflection on goal attainment and learning experiences. Implementation of intentions until the booster session
8. Booster session (4 weeks after the completion of the seventh session)	Reflection on goal attainment and learning experiences. Implementation of intentions during the upcoming months
Elective modules
1. Worry and rumination	Information on worry and rumination, using a worry-diary and other techniques to challenge such thoughts
2. Acceptance of unfulfilled needs	Attending to unfulfilled needs and unsolvable problems and learning to accept them
3. Relaxation	Exercise on progressive muscle relaxation
4. Alcohol consumption as emotion regulator	Information on the relationship between mood and alcohol, self-assessment of consumption and techniques to decrease it
5. Self-worth	Information on the effects of low self-worth and exercises to increase it
6. Perfectionism	Identifying personal high standards and learning techniques to exit from a vicious circle
7. Appreciation and gratitude	Learning how to express gratitude and how to consciously appreciate positive things in daily life
8. Sleep hygiene	Sleep-limitation technique (ie, by initially limiting sleep being able to ultimately sleep better)