The sentences about hard work are parallelism and metaphor, and four idioms about struggle are used.
Go ahead, fight hard, go ahead, fight hard, go against the current, persevere, catch up, strive for self-improvement, persevere, be more frustrated, go forward, work hard, be proactive ... fearless in times of crisis, indomitable, selfless and indomitable, and report to homework help users by drinking blood 2017.