I fixed the format of all your tags to ensure they are functional in osm

Hi, I see you have resolved many. There are only 8 more left to do. Tks.

Hi, the editor you have used has noted a few errors as listed in the boxes directly above this text.
The main warning is "warnings:crossing_ways:highway-highway" of which there are 11 instances.
Where one track/path/footway (called a type of highway in osm) crosses another you need to put a node at that point to join the two where they cross.
If a way crosses a stream you normally add a ford to the crossing point if you cross through the water. If there is a culvert or pipe with the way passing above it then you would not join the two but instead split the small section of the waterway and add a culvert. If a bridge takes you above the waterway you split the way you cycle or walk over at each end of the bridge and add a bridge tag to that section.
I am not sure of the details of the impossible one way but it means you can't leave that section with out traveling against the one way direction.
This one likely has occurred where you have not joined end of the way to the one it should connect to. You may need to double click to join lines in the iD editor but I am not very familiar with iD.

Neither of the lake you added are visble on Bing or Esri imagery and are reverted (deleted)

...also extended Bulloo River to end using Geoscience Australia - Surface Hydrology Lines (Regional) and Esri World Imagery as sources.

Oh, I apologise for that @Cam-I-Am. I forgot to look at the history.

Hi, street names are not abbreviated in osm. I will fix these.

Adding tags that are unknown doesn’t add anything of value to the osm and I expect it is preferred not to add those.

Hi, the website seems invalid for me.

Please don’t place your business details over the motorway or in the school grounds. You are required to place the business details over the building you operate from.
This edit also dragged an admin boundary for Greenacre and Strathfield and is reverted.

Hi, I don’t think the tennis courts need to carry the name ‘Courts’. The name is for things that do have a proper name like this park or a street sign. The courts name here appears to be more of a description. I assume the courts carry other tags to describe what they are and their use.

This is now fixed

Hi, osmi found a self intersection error here
https://tools.geofabrik.de/osmi/?view=areas&lon=145.74031&lat=-16.91319&zoom=19

If you want to add the address 92 Bunker Road to the map it is not done by adding ref=92 to the roadway.
You need to add a node or draw the outline of the house and then add the tags for the address to that. Check a house that has the house number mapped to see how it is done.

I noticed that Bondi Link and Ocean keys Boulevard share the same node on the roundabout. They should join the roundabout on their own separate node with a small section the roundabout between the two nodes. Even if it looks like they join and depart at the same place, the small seperate section of roundabout is mapped for better vehicle navigation function.

Hi,
Just a few things I noticed with your edit.
Buildings in osm are mapped by accurately drawing the building footprint instead of the shape of the residential plot it sits on.
The driveway is tagged layer=-1 and that places it below the road and the footpath … this tag should be deleted.
I also saw that one section of Bondi Link has a ford mapped. A ford would be used if you need to cross a watercourse going along that part where the ford tag is. To me, that seems unlikely but I am not local to the area.

...and the recent discussion link
https://community.openstreetmap.org/t/help-fixing-osm-map-in-sydney-australia/108977
For your problem you should start a new topic of discussion under the osm Oceania community.

You can't abuse the OpenStreetMap in this way to test your navigation.
I have reverted your changeset.
It might be better to discuss the problem at the OSM Community forum https://community.openstreetmap.org/c/communities/oceania/73
There has been a recent discussion about a Tesla routing problem and this post may be of general interest.
There is help available here is you explain the problem you are encountering.

I already fixed the coastline earlier today

I deleted The Good Guys