Good, that is what I meant–your father’s direct relationship to you allows you to apply for an immediate relative green card. And you’re right, even though it’s called immediate it still takes months—but much faster than the normal years that it takes to get a green card.
Regarding UIUC acceptance, you can apply to delay that for up to 2 semesters. I assume UIC has a similar policy, you will have to check. So make sure you get that paperwork done, your GC can help. UIUC could work (assuming you get your green card) if, after your pell grant and $5,500 loan, they cover the rest with a grant, but that is not their typical aid package. If they want your dad to take a plus loan, I encourage you to not do that and go elsewhere.
What are your thoughts regarding gap year vs. community college? Are you open to a GAP year?
Keep us updated as the rest of your decisions come in.