Hello and welcome Booleanssm,
As @paulvdh writes, making a symbol is not difficult.
You need to draw a rectangle and place eight pins around that rectangle, name your new component UM3561, then place it in one of your personal libraries.
If you have never made a symbol before I’d suggest modifying an existing symbol to get an idea of how the editor works.
Perhaps start with a LM4810 from the “Amplifier_Audio” library. All you need to do is edit and maybe move the pins, but experiment with the shape also for experience.
Don’t attempt to modify any symbol in a kicad library. Place the symbol in your own library first.
If you don’t have a personal library yet, read this from the FAQ at the top of this forum:
https://forum.kicad.info/t/library-management-in-kicad-version-5/14636