to decide to do something: to do something on purpose / to perform a maneuver, to carry out a tactical action / to decide on an opinion: to believe in an opinion firmly

an upperclassman / an older alumnus (graduate) of one’s school / a person who entered one’s workplace earlier; a senior; one who has seniority / an elder (one who is older)

emulation, following in someone's footsteps

to emulate, to follow in someone's footsteps

success / success in life, achievement in the world

succeed / be successful in life

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

veteran, someone who is one's senior by a significant degree