Complex sentence: Then she went on to her best known role on the television soap opera "Ryan's Hope" as Jillian "Jill" Coleridge, and, in 1989, as Marissa Rampal on "All My Children".
Split into simpler sentences: Then she went on to her most remembered role on the television soap opera "Ryan's Hope" as Jillian "Jill" Coleridge. Later, in 1989, she became Marissa Rampal on "All My Children".