Post 9/11 summer courses?

Does post 9/11 go off of credit hours or status. Cus I was told as long as I’m full time I will get my full 2058 like I’ve been doing. But this is my first summer. And full time for summer is 6 credit hours which I’m taking. I just got a deposit for like $750 that’s not even enough to pay my rent. Like do you only get full if you take 12 credit hours. Because 12 hours in the summer is kind of a wild thing to do like with just the two I had me busy.