Advice on reviving lawn

[Suhan]

Hi!

When I first moved into my house, my backyard had nice green grass. Now, it seems to be completely overrun by weeds and I’m not sure if there’s actually any grass left, and it’s growing too fast. From what I gathered online, I will need to apply a weed killer over the whole lawn and then top soil, and final step is lay new turf. I’m looking for advice on whether this is something realistic to do on my own as someone that knows close to nothing about lawn maintenance. Or is this something that needs to be done by a professional, if so, who should I be contacting? Turf laying services? Landscaper?

I’m based in Sydney, Australia

 

[Suhan]

This is my lawn

 

[Meadowlark]

Howdy neighbor.

Be very cautious about using weed killers as they kill indiscriminately. Starting over can be very expensive and/or labor intensive. Honestly, it doesn't look that bad to me...but I'm not a "lawn of the month" type person...but as a rancher I do grow a lot of grass.

On one picture is appears to have significant shade which can be problematic for certain grass growing. Have you ever tested the soil?

Regular watering, mowing, and fertilizer for your soil should be sufficient.