@thegreatiam15, EOI is expression of interest, meaning, you are telling AU government that you want to migrate. Once you have your IELTS, you can lodge your EOI even if there are no states willing to sponsor you yet.
Now, since you are determined to stay in ACT, and only in ACT, when you lodge the application, you select only ACT in the states you want to get sponsorship from.
In my case, I had lodged my application a couple of months before but no state was sponsoring my application. When I found that ACT sponsors my skis, I submitted my state sponsorship application to ACT and then when I got it, they were able to update my EOI and send me an invitation to apply in ImmiAccount.
Hope this helps.