SwiftUI: VideoPlayer to display different videos stored locally (back and forward buttons)

I'm still new to SwiftUI and have run into a problem. I need to use back and forward buttons to make the Video Player go to the previous/next video (stored locally). The following code works for one video only, the one declared into the init(), but I can't manage to change the video by clicking the back and forward buttons. I'm using an array of String called videoNames to pass all the video names from the previous View. Also, I'm using a custom Video Player for this and I'm gonna include the relevant parts of the code.

This is my View:

let videoNames: [String]

@State var customPlayer : AVPlayer
@State var isplaying = false
@State var showcontrols = false

init(videoNames: [String]) {
    self.videoNames = videoNames
    self._customPlayer = State(initialValue: AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: videoNames[0], ofType: "mov")!)))
}

var body: some View {
    VStack {
        CustomVideoPlayer(player: $customPlayer)
            .frame(width: 390, height: 219)
            .onTapGesture {
                self.showcontrols = true
            }
        
        GeometryReader {_ in
            
            HStack {
                
                // BACK BUTTON
                Button(action: {
                    // code
                }, label: {
                    Image(systemName: "lessthan")
                        .resizable()
                        .aspectRatio(contentMode: .fit)
                        .frame(width: 60, height: 60)
                        .foregroundColor((Color(red: 243/255, green: 189/255, blue: 126/255)))
                        .padding()
                })
                
                // FORWARD BUTTON
                Button(action: {
                    // code
                }, label: {
                    Image(systemName: "greaterthan")
                        .resizable()
                        .aspectRatio(contentMode: .fit)
                        .frame(width: 60, height: 60)
                        .foregroundColor((Color(red: 243/255, green: 189/255, blue: 126/255)))
                        .padding()
                })
            }
        }
    }
    .offset(y: 35)
    .edgesIgnoringSafeArea(.all)
}

This is my custom Video Player:

struct CustomVideoPlayer : UIViewControllerRepresentable {

     @Binding var player: AVPlayer

     func makeUIViewController(context: UIViewControllerRepresentableContext<CustomVideoPlayer>) -> AVPlayerViewController {
      
         let controller = AVPlayerViewController()
         controller.player = player
         controller.showsPlaybackControls = false
         return controller
     }

     func updateUIViewController(_ uiViewController: AVPlayerViewController, context: UIViewControllerRepresentableContext<CustomVideoPlayer>) {
     }    
}

I've researched for solutions but couldn't find anything relevant. I've tried to modify my CustomVideoPlayer and not pass a @Binding variable... As well, the init() gave me a lot of headaches as it comes back to errors every time I change something... Any solution would help guys. I really appreciate your time.