1.
become largely/highly/partly in
very/purely/merely/essentially
2.
教育改变了我的命运。
Education is instrumental in changing my destiny.
Education has been highly instrumental in transforming my life.
Education is an instrumental tool in shaping my destiny.
3.
合理的时间规划有助于我们高效地完成任务。
Properly managing time is largely instrumental in helping us complete tasks effectively.