Put down too much Starter Lawn Food w/ Weed Preventer

Hello ya'll, I just got done clearing a section of our property at the back in order to put in a new fence for the dogs and make use of as much space as possible. So, there was a 65' X 15' section of over growth that I had just cleared, full of weeds, small trees, vines, old dried out twigs, sticks, branches, and small logs and managed to get it down to bare dirt. I was planning on putting down Scotts, Step 1 for seeding, starter lawn food w/ weed preventer, then after that I was going to spread some black dirt, top soil, and then spread grass seed, but I wanted to put down something to keep the weeds from coming back first. Well I read the bag and setting for the broadcast spreader on the back which said to put it on setting 7 which I did and ended up going through the whole bag, well when I was done as I was about to throw the bag out I saw on the bottom corner "Covers 5,000 Sq. Feet." So now I'm thinking Ooooh... Sh*t. I am not very familiar w/ lawns and lawn care, We usually have someone Mow ours, but now I'm not sure where I stand, how I should address this issue and what problems this is going to cause me as far as still being able to plant grass seed etc. Any advice on how I should handle this or what the hell I should do would be greatly appreciated. Thanks in advance for your time and at the very least reading this thread.

Put down too much Starter Lawn Food w/ Weed Preventer