Modify upload provider with custom path

So i’ve locally installed the provider, strapi-provider-upload-google-cloud-storage, using the instructions here: https://strapi.io/documentation/v3.x/plugins/upload.html#create-providers It starts up and runs just fine. But i guess the piece that i dont understand is that i need to modify the Upload method from the main strapi-plugin-upload to insert my custom path? This path is dynamic and will be updated with a uuid that belongs in the model of the event that im uploading these images too.

If i try to override the upload/models/upload.js file in the plugins directory, strapi throws and error and quits. What am i missing?