How do I display user statistics/analytics on their dashboard?
If you aren't using the campaign report (which can be made into a dashlet by checking the Available For Dashboard checkbox when you save - see https://docs.civicrm.org/user/en/latest/the-user-interface/menu-dashboard-and-dashlets/#dashlets), then you could either use https://docs.civicrm.org/dev/en/latest/hooks/hook_civicrm_dashboard/ to put something custom into the /civicrm/user page, or make your own dashlet to be available at /civicrm/dashboard (see e.g. https://civicrm.stackexchange.com/a/28877/181)