For 2017, you’ll file Form 1040 and then can either take the FEIE (foreign earned income exclusion) on Form 2555 or 2555-EZ or the Foreign Tax Credit (FTC) on Form 1116.
The new tax law went into affect starting in 2018, so for 2018, you’ll file Form 1040 and any of applicable schedules. Form 2555-EZ was no longer available starting in 2018 so you’ll need to file either Form 2555 or Form 1116.
Regarding the FBAR, you only need to file that for each year that you had over $10k aggregated at any time during the year in non-US financial accounts. This form is filed with the FinCEN (US Treasury’s Financial Crimes Enforcement Network), not with the IRS. It’s NOT a tax-related document.
