Confessional poetry is also called the poetry of the "I," as it is highly personal. Confessional poets would usually write about their own life experiences, and this led to the appearance in literature of topics such as death, trauma, depression and deviant behaviour that had not been openly discussed in literature before. Some authors who followed this trend were Robert Lowell, Sylvia Plath, Anne Sexton, and W. D. Snodgrass.
"Early" and "reluctantly" are adverbs. "Early" helps the verb "retired" by telling when. "Reluctantly" describes how the baby boomers feel about "looking" for another job. Hope this helped. :D