Hi oliviasch,

Welcome to OSM and thanks for your contributions. Just a bit of feedback on your first edits:

1) If you need to expand something like a park or a sports complex, just add more nodes and drag out the existing area as required. If you create new areas, we end up with multiple map elements representing the same location. I've fixed this one up for you so you can see what I mean.

2) What were you trying to do with the Cafe at this location?
https://www.openstreetmap.org/node/4226228622/history
You've removed the name and added a not: prefixed wikidata tag instead.