This could get messy, so best to place a drop sheet down to protect your carpet. The next step is to clean up around the hole and get rid of any excess plaster – you want to make this job as easy for yourself as possible. You can use a putty knife or sandpaper block to do this. You want your hole to be clean and dry before you stick the patch on.
Once you've purchased the right size drywall patch (there are plenty of options available at Bunnings), peel off the backing sticker and cover the hole. Press firmly to secure it. Reinforce it by sliding your putty knife or spatula along and press it down nice and firm – you want it to be completely smooth.
Grab some Smooth Coat and start from the inside of the patch and work your way out, smoothing the plaster over just like you're icing a cake.
Add another layer of Smooth Coat. Give it one last sand and it should look as though nothing at all has happened! Just like magic!
Once your hole is repaired, you're ready to paint. How easy was that?