Gui.Label chat system direction of label "stacking"

Hi there I am making a chat system for my game. I have all the networking working like I want it but I am now messing with the actual layout.

As messages come in I want the second message to appear above the first message in the picture above. Secondly I would want each individual label to fade out but still be there after a certain amount of time.

here is the script so far:

 public class Chat : MonoBehaviour {
 
     public List<string> chatHistory = new List<string>();
 
     Client client;
     public string thisPlayer;
     public GUISkin skin;
 
     private string currentMessage = string.Empty;
 
     Rect textEntry = new Rect(0, Screen.height - 25, 175, 20);
 
     private void OnGUI()
     {
         if (!Client.isConnected)
             return;
 
         LoadGui();
     }
 
     private void LoadGui()
     {
         currentMessage = GUI.TextField(textEntry, currentMessage);
 
         if (GUI.Button(new Rect(200, Screen.height - 25, 75, 20), "Send"))
         {
             SendMessage();
         }
 
         GUILayout.Space(Screen.height - 45);
         foreach (string c in chatHistory)
         {
             GUI.skin = skin;
             GUILayout.Label(c);
         }
 
     }
 
 // send message function
 
     public void ReceiveMessage(string message, string playerName)
     {
         string timeOfMsg = "[" + DateTime.Now.Hour + ":" + DateTime.Now.Minute + ":" + DateTime.Now.Second + "]";
         chatHistory.Add(timeOfMsg + " " + playerName + ": " + message);
     }
 }

Any feedback would be greatly appreciated.