Notifications and arming

So I just set up several sensors , bridge and doorbell plus security cams , I want to get monitoring but so confused how to set up my notifications so that it’s not going to someone having to notify police every time I get a notification, but I still like to receive notifications just for me . I have a keypad but need hep knowing if I need to use it or just use the app dashboard arming away or stay or leaving . Setup was easy but understanding notifications and arming seems to be very complicated and I need help with this.. Thanks