Error while filtering the Cache Data : Laravel 5.2

I am trying to filter the cache data using the below code

$Categories = \Cache::rememberForever('Categories', function() {
    return \App\Models\Skill\Category_Model::all();
});

$Category = $Categories::where("CategoryID", "=", $id)->first();

Error details :

Non-static method Illuminate\Support\Collection::where() should not be called statically, assuming $this from incompatible context

Am I missing anything ?

I meant, what's the fastest way to filter the data in cache object. Cache object is a Model. Categories Array contains collection of Models that contains categoryID ID. and I want to filter data based on CategoryID

via Chebli Mohamed