Properties overview

Every day i add to my daily notes 3 things:
mood : 1-10
Training : 1 / 0
Workload : 1 - 10

How can i see an overview for the week or month ?

You could do this with the Community Plugin Dataview and its upcoming successor Datacore, but there will also be an integrated version of this into the new table editor from the Obsidian Team at some point.

Dynamic views are on the Roadmap as planned.