People who are eager to excel tend to be under a lot of pressure.
Tips
mistakes
好 here is hào (4th tone, 'to be fond of'), not hǎo (3rd tone, 'good'). 好强 = 'fond of being strong/best'. Compare 好学 (hàoxué, 'eager to learn'), 好奇 (hàoqí, 'curious') — same hào pattern.
register
Carries a slightly mixed nuance: admirable drive, but also stubbornness and unwillingness to lose. Often used with 不服输 (bùfúshū, 'refuses to admit defeat').