You cannot afford GA tech, your parents will never be able to borrow enough to put you through 4 years.
If you got in to GA tech, you are probably pretty smart.
Are you graduating in the top 10% of your class? If yes, then you will be able to go to SUNY tuition free under the STEM initiative. If you have graduated in the top 10% of your class I strongly recommend that you pursue this.
With $3,000 EFC, unless you were accepted through the EOP, based on the amount of TAP and Pell ($2825) that you receive (which is not going to be a lot), your parent(s) will have to take out PLUS loans for you to dorm at SUNY after you borrow $5500 in sub and unsubsidized loans (part will go to cover the tuition if you are not able to get the STEM initiative).
Do you live in NYC? If yes, I would recommend that you attend CUNY City College (where you will still need loans to cover the tuition because it won’t all be covered by TAP and Pell), even if you have to start at CUNY CC (where if you are accepted by ASAP, you can complete your associates for free, along with free books and metro cards), achieve 30 credits and a 3.0 GPA. Were you admitted to CUNY? IF yes, were you admitted to SEEK? If you were admitted to SEEK, I would recommend that you follow the money.
If you are not in the city then you need to attend a SUNY where you can commute from home or commute from home to attend one of the SUNY CC (where you may have just enough to cover the tuition. You may have to borrow for books transportation and other items associated with the COA.
No matter where you go, you must get a summer job. You have a gap to fill in addition to needing some start up money to attend college.
You really have to sit down with your parents and work out the money, because despite the perception that everyone throws a ton of money at low income students, you are going to have to do some financial juggling to make going away to college work.