Welcome here to the Support Forum. This is itself a friendly place and allows you to talk to others who may also be feeling isolated -particularly with Covid restrictions in place
Beyond Blue has its own social zone here
It is easy to start there is some sort of lack in yourself when your social needs are not met. I say social needs because that is common to most everyone, and a surprisingly large number, like you, feel alone. It is no reflection on you, just the way are society tends to be structured. Ironically a city or town can be the loneliest place.
I guess that avenues to look to are firstly volunteering (as restrictions allow), these tend to be for people that believe something is worth doing for it's own sake, which gives you a large cross section of people to meet with and maybe find things in common.
I'd suggest Volunteering Australia's GoVolunteers site
Contacting social welfare sites like Red Cross, St Vincent's and so on direct
Facebook's Discover Section
Plus advice from help lines as found in
and Black Dog's
which has some useful links.
I doubt there is one quick fix, however by reaching out whenever you can and trying suggestions things may seem brighter.
Please let us know how you go