Debian operating system

I have a home server that uses wifi. I know wifi sucks but it's the only way because my setup sucks.

It actually works pretty well but the wifi disconnects once every few days and doesn't reconnect unless someone physically goes to the computer and presses the connect button with the mouse.

I have tried time and time again to find a way around this. I want it to always reconnect without manual intervention. It uses whatever wifi ui thing comes with lxde which is the same as the one that comes with cinnamon.

Do I use wpa supplicant? Iwctl? How do I disable the ui one in lxde? How do I put it back when none of that stuff ends up working? How do I make it start up automatically? I want to get this entire thing to stay connected to the wifi indefinitely without human intervention and still start all the way back up without human intervention in the case of receiving a restart command.

If a shitty wifi connected doorbell can stay connected to your wifi for years straight, surely there's a way to make a Debian server that reliable.