how do I set my Mac book to my location

The only way your Macs location can be "set" is by a nearby WiFi router that has location capabilities or through using a cell phone as a hotspot. If connected via ethernet, what ever the nearest router is that has location capability, is the one that it will use which can be quite far away.

There is no other way to "manually" set any Macs location.

Can you please explain what this is about?

Due to my limited comprehension, the response you want may not be accurate, but here is what I have so far understood about your question.

• If your having trouble with setting your location, then you may want to check to see if an app has permission to access your location by going in the System Preferences > Security & Privacy > Privacy Tab > Location Services and check which app can access your location.

• If it's about setting a location such home or work then you can set this through the Contacts App and clicking the + button to add a field and then choose Address.

• If you're talking about finding the location of the Mac then you may want to Google How to setup Find my Mac