It’s not possible to create ‘context filters’ for Report View (i.e. limit the data to that for the logged in user) but there are some tricks in reports that you could use to make the analytics more usable.
For example, you can split charts into sub-charts (one per user)
or you could replicate each view within a report and apply filters so that there is a view per user.
None of the workarounds will get you the same filtering that is possible in other views (e.g. ‘Assigned to Me’) sorry.