How to say "Desperately" in Japanese

When translating "desperately" into Japanese, you must choose carefully between がむしゃらに and 躍起. In Japanese, がむしゃらに (がむしゃらに (gamushara ni)) is typically associated with "desperately, recklessly, in a headlong rush, without thinking" (Syllabus Level: N2) and represents Acting without proper thought or planning, often with great energy and determination, sometimes to the point of being reckless or sacrificing carefulness for speed/effort.. On the other hand, 躍起 (やっき (yakki)) maps to "desperately, eagerly, with utmost effort, becoming frantic" (Syllabus Level: N2) and represents Describes a state of putting all one's energy and effort into something, often to the point of desperation or intense eagerness, sometimes implying a loss of composure. Often used in the form 躍起になって. A literal translation of "desperately" can often sound unnatural to native Japanese speakers if mixed up!