My success was due to good luck, hard work, and support and advice from friends and mentors. But most importantly, it depended on me to keep trying after I had failed.

The speaker frames success as multi-causal: chance (“good luck”), sustained effort (“hard work”), and social capital (“support and advice from friends and mentors”). The pivot—“But most importantly”—reasserts personal agency, locating the decisive factor not in initial advantages but in resilience: continuing after setbacks. The quote thus balances humility (crediting others and circumstance) with responsibility (persistence as a choice). Its moral emphasis is on perseverance as the differentiator between those who merely encounter failure and those who convert it into eventual achievement, suggesting that endurance over time matters more than any single triumph or defeat.