Hi KingNorman, congrats on creating your first contributions to OSM! Here are a few pieces of advice regarding the path between both blocks:
-Use the tag 'name' when it is the official name of a feature. In this case you have used it to describe the path, which is not the intended use of this tag.
-Similarly, the tag 'note' is used to communicate with other mappers and assist their task. In this case, there is no need to describe the park, although there is the tag 'description' which fits this purpose. I suggest that you add the 'leisure=fitness_station' that you mention as nodes instead.
- Path is a valid tag, but if it primarily is a footpath, then it is better to tag it as 'highway=footpath' and 'bicycle=yes'. 'Foot=yes' becomes redundant in that case.
-In general, paths should connect to other ways unless they really are isolated. In this case, if there is a void deck you could create a corridor through it and then another path leading to the car park. I believe the ID editor should warn you when this happens.

I encourage you to keep mapping and to read on the OSM wiki, which is a great resource to learn: osm.wiki

Yes, it was a mistake in my first days using Streetcomplete. I reverted the changes in # 71170604. Applied same attributes as the subsequent sections.