If you’re always concerned about sophisticated attackers, then you should also:
Disable biometrics unlock whenever your device is about to leave your possession or you’re going to sleep
Protect against shoulder-surfing / surveillance attacks that can capture you entering your password, e.g., by being aware of your surroundings and only entering your password or viewing sensitive information when you‘re certain your screen (and thumb locations) can’t be observed or by obscuring a view of your phone with your shirt or a blanket (like Snowden)
Take the time to learn more about security in general and in relation to the specific threats that concern you