Learn how to use events to keep track of player statistics, the one I go over in this video is health, but you can change and tweek it for whatever events, data, and gui that you need.
Extra Delegates Info
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/events/
Extra Events Info
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/delegates/
Code
https://github.com/luhdriloh/events_based_ui