Hi. this is not the correct way to handle here in OSM. if the objects you intend to create are improvements to existing ones, the way to go is to edit the existing objects. that keeps history. 
also your first deleting everything in one changeset.
then adding stuff in another changeset.
that's making reconstruction of history close to impossible.
please ask  your university tutors.
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            Published using OSMCha: https://osmcha.org/changesets/154164854
            