Don't know my custodial parent. Very worried about my FA situation.

For FAFSA, you will just use your DAD…as he is your custodial parent for FAFSA purposes. If he is remarried…his spouse will need to be included as well.

You mention Profile schools. If the colleges you apply to require the non-custodial parent Profile, you will need to apply for a waiver to NOT submit that. You will need to contact each college for their waiver submission requirements…and submit them.