Actually…you need to wait to file the 2022-2023 Fafsa until October 1, 2021. You can’t do it sooner.
But that’s not a big deal. Just do your application…you won’t need to commit to the college until May. Your need based financial aid award will come along later, but in plenty of time to make that matriculation decision.
So…apply to ASU now. When you are accepted, I believe you will receive your merit aid award shortly thereafter. Complete the FAFSA after October 1. If you are eligible for need based aid, that will follow.