Diabetes Self-management With Continuous Glucose Monitoring

The overall goal of this observational study is to investigate the interaction between people with type 1 diabetes and continuous glucose monitoring (CGM) and the impact of this interaction on quality of life, particularly the level of diabetes distress, and glycaemic metrics. Participants will: * Visit the clinic twice with a 14-day interval * Fill out a survey before the first and at the last visit * Use CGM as usual and use smart insulin pens and an activity tracker * Register food intake * Answer two-three questions twice a day in REDCap