Chastity and orgasm denial discussion

Hi there! I’m a 20-year-old guy and I’ve just acquired my first chastity device, the CB6000. The goal is to support our relationship dynamic. My girlfriend and I both feel that I need to cut back on masturbation; currently, I do it between one to three times daily, but I’d like to slow down that frequency. Also, I can be a bit of a pest sometimes, nagging her about certain things. Once the device is fitted and locked on with me handing over the key, how long should my first period of confinement last? And what’s the best way for me to make up or account for that time?