You'll survive just fine.
Until 20 years ago, there were still
liners plying the north Atlantic. My partner's parents immigrated to Canada taking a ship from Bremen to Quebec on a German liner (should have taken an Italian liner as it was much nicer for the same fare) in the early '50s.
Treated themselves on their first trip back home after 6-7 years in Canada. Roundtrip ship fare for a couple, an infant and a huge Chrysler was about the same as flying from western Canada to Austria.