Here is a link to Sleepyhead. It needs to be downloaded and extracted into a folder using the 7Zip program. http://sleepfiles.com/SH/index.html?TestingVersions
This is how to post charts. https://sleep.tnet.com/reference/tips/imgur
The leak data on Sleepyhead will show us when and how much you are leaking. This may point to mouth leaks, although usually if air is leaking from the mouth that is disruptive to sleep and you'd be aware of it.