Hi @Rothman and welcome to the forums. It's good that you have found us and are being supported here. @Maggie has given you the advice that I would give you. You might find that at the moment GPs are doing telehealth (phone or facetime) consults so you don't actually have to go there in person. And some, like the clinic I go to, you can contact via email through their website.
I do have an NDIS plan and the support workers I have (which NDIS pays for) take me to my essential appointments, shopping, chemist etc as well as out in the community for activities and exercise. Having this has changed my life as I'm also unable to do these things by myself. I started a thread called Re: Anyone started with the NDIS some time ago and there's lots of information in there if you want to check it out. But you do need reports from health professionals and a doctor to complete the access request form. So if I were you I would start by googling doctors in your area and seeing who can be contacted by email. Not sure what else to suggest, just talking from my own lived experience.
Keep reaching out, there are many supportive people here, even if all we can do is hang out with you on the rough days. There are also threads about coping skills, particular diagnoses, and some social threads ... use the search bar and you'll be amazed what you can find on here.
If you want to reply to or chat with a particular person type @ and you will see a drop down box where you can click on the name you want. If that name isn't there then just @ and keep typing the name and it will soon appear in the box.
Take care and go gently.