Are you attempting to correct an error?
Yes I am.
If your application has already been processed, you can correct your FAFSA form online or on paper.
What information can I change on my form?
While most information can not be changed on the FAFSA form, some information must be updated if it changes. We have relevant information on the difference and how to update FAFSA information.
In addition, I need to find out about renewing my FASFA form.  In a hypothetic scenario, how would I do a renewal to change information on my form?
No problem. Just Login into your account and select FAFSA renewal once there. It all will develop  automatically.
You mean i just sign in there after that, all i have to do is submit the form?
That's correct. Only log in, sign after you filled the form and submit.
Then, to resume, i just follow the instructions and then i'll be able to renew, right?