You need to turn you brightness down until you can't stand it anymore and you are there. My MAX last all day and I never have to worry about the battery.
How long is yours lasting?
From looking at you past started threads you are living on your phone. If so just plan to charge every once in a while.
I’m either on the home screen or just browsing the web. I don’t have any apps running in the background. I think the oled screen isn’t battery efficient.