Could you please advise what the deadlines for the academic year are?
The deadlines for the 2019/20 Academic Year are as follows: Online Free Application for Federal Student Aid FAFSA forms must be submitted by 11:59 p.m. Central time (CT), June 30, 2020 and any corrections or updates must be submitted by 11:59 p.m.  CT, September 12, 2020.
by the way, is the process complicated? And to finish with the FAFSA, can I do it through the website?
It is an easy and straightforward process to fill out the FAFSA and you just need to select the Fill Out the FAFSA button on the home page and just follow the directions on the page.