HELP: Nested JSON Nightmare!

[ericonline]

"Calling all cars!" Help! Days in, sooooo close. Need your eyes!

Schema in Collection: Works just fine.

{
    "LEVEL1": [
        {
            "LEVEL2": {
                "dontWorry": "aboutMe"
            },
            "LEVEL2": {
                "dontWorry": "aboutMe"
            },
            "LEVEL2": [
                {
                    "LEVEL3": [
                        {
                            "LEVEL4": "thing",
                            "LEVEL4_A": {
                                "ID": "1234",
                            },
                            "LEVEL4_B": {
                                "thingToPatch1": "Y",
                                "thingToPatch2": "X"

                            }
                        }
                    ]
               }
           ]
        }
    ]
}

PROBLEM: 

• I need to look at LEVEL4_A ID and Patch LEVEL4_B thingToPatch.
• I cannot for the life of me figure out what to put in the { } !

SOOO CLOSE WITH THIS:

Patch(
    First(
        First(
            colCollection.LEVEL2
        ).LEVEL2.LEVEL3
    ).LEVEL3.LEVEL4_A,

LookUp(
        First(
            First(
                colCollection.LEVEL2
            ).LEVEL2.LEVEL3
        ).LEVEL4_A.ID,
    LEVEL4_A.ID = ThisItem.LEVEL4_A.ID
),

    {
        WHAT ON EARTH GOES HERE?
    }

)

I cannot find a value that works for the Patch({update}). 
Has anyone faced this before? I'm a few days in now and wondering if I hit a limit in PowerApps.
(Definitely hit a limit in my understanding). Any ideas #PowerHomies?

@RandyHayes , @timl , @wyotim , @RusselThomas , @Drrickryp , @mr-dang, @KickingApps 

[wyotim]

Some suggested middle names:

Jaysahn Aypeeaye Johnson and Seequahl Tables Johnson

The horror on the faces of teachers taking roll on the first day of class...priceless! 

Come for the difficult data situations and great solutions, stay for the data-related humor!

[timl]

LOL! Reminds me of this xkcd cartoon...

https://xkcd.com/327/

[wyotim]

Little Bobby Tables. Too funny!

[ericonline]

"Aypeeaye" ! Just got this one ("API").

Chuckling! 🙂