Possible Clues:

• Daredevil's acronym
• "Here goes nothing" hashtag
• Acronym comparable to "carpe diem"
• "Just go for it," in a text
• Acronymic equivalent of 'man lebt nur einmal'
• Acronym that might be shouted before a rash act
• "No regrets" initialism
• Risk taker's acronym
• "Seize the day" letters
• "Seize the day" initialism