Try not to contact violence and stalking support services from your own device if you fear violence. Secretly organize a new device for research and contacts.
More information
Remember not to use the new device with your Wi-Fi at home. Otherwise, the new device could be discovered via the settings of your home router. If you do not have access to your own account or it is being monitored, try asking friends for help. Use prepaid SIM cards and pay for them in cash. Do not log into existing accounts with your phone, but create new ones to be on the safe side. This also applies to your email address. Because perpetrators often have access to this too.