How to use Storage facade to delete a file

I'm able to delete the image from the local driver using the below logic when I use php unlink method but when I use Storage facade the post get's deleted but the image is not deleted. I've tried playing around with the Facade way but I can't seem to have it work. What I'm I missing?

public function destroy(Post $post)
    {
        // unlink('storage/'.$post->imagePath);
        Storage::delete('storage/'.$post->imagePath);
        $post->delete();
        return redirect(route('posts.index'))->with('flash', 'Post Deleted Successfully');

    }

You have to understand that (by default), the Storage facade looks into /your/project/storage/app.

This is the root directory.

If we assume:

• Your project is located in /home/alphy/my-project
• $post->imagePath == 'posts/18/picture.png'

... then:

• All Storage facade methods, including delete(), copy(), path()... will looks for /home/alphy/my-project/storage/app/posts/18/picture.png when you give them $post->imagePath

So:

    public function destroy(Post $post)
    {
        Storage::delete('storage/'.$post->imagePath);
        // tries to delete /home/alphy/my-project/storage/app/storage/$post->imagePath     
        // which is probably wrong   


        $post->delete();
        return redirect(route('posts.index'))->with('flash', 'Post Deleted Successfully');

    }