screen resolution – Ubuntu does not remember configurations

I have problems with Linux Mint I do not remember the settings.
The configuration I need every time it is configured after loading Linux is the screen configuration (adding resolution to one of the screens and applying this resolution to the screen) and maximum surveillance and maximum user instances.

Commands that I need to execute every day:

sudo nano / proc / sys / fs / inotify / max_user_watches 

change the number in the file

sudo nano / proc / sys / fs / inotify / max_user_instances 

change the number in the file

xrandr --newmode 1440x900_60.00 106.50 1440 1528 1672 1904 900 903 909 934 -hsync + vsync
xrandr --addmode DP-1 1440x900_60.00
xrandr - DP-1 output - 1440x900_60.00 mode

I sometimes run that last command, but usually Linux remembers this configuration in some strange way.

How can I make Mint remember these settings?