You don't want to look for anything at all. You just want to be given a ready-made answer.
That's not a problem, but all that information is googleable.
FireBase has analytics you can use it by buying a plugin for construct3.
https://www.construct.net/en/forum/construct-3/plugin-sdk-10/construct-master-collection-139046
https://www.construct.net/en/forum/construct-3/plugin-sdk-10/addon-firebase-web-collection-178356
The alternative is game analytics, the documentation is here.
https://docs.gameanalytics.com/integrations/sdk/construct
firstly calm down I thought I had looked enough and wrote here and I couldn't find a video tutorial on how to add the firebase plugin from start to finish
if I was looking for paid or ready-made apps I would have bought this already I don't want to buy or use something ready-made, I want to watch a tutorial on how to make and use it.
Thanks for your help.