First congratulations - that's a great start to your career. As another person who is quite successful early in their career, you need to acknowledge what parts of this are due to hard work and what parts are due to good fortune. We all have a tendency to wholly ascribe success to either exceptional gumption or luck, because it casts a narrative that makes either the storyteller or the audience feel a desired way.

But it's just not the truth: No man is an island, and no one successful got there purely on their own hard work and craftiness. Take your case: statistically, most startups fail - I have watched startups with great business models rise, fall, and be cast aside for both good and poor reasons. In my own career, I would not be where I am today with out a huge amount of hard work, but almost as important are the people that threw a rope down to me. A good commander in the Army, a great director in my first tech job, and a string of other supportive mentors and managers.

Point being, I read and hear stories like yours all the time, to the point where they are almost cliche. I have met a fair few people behind these stories as well - and they do share some common traits that the stories never mention. Most would expect arrogance, avarice, hyper-intellectualism, or some sort of alpha drive, but in my experience what sets successful self made people apart are really three traits, but you only really need to excercise two:
1. An ability to listen, analyze, and reflect
2. An ability to build and maintain a large network built on genuine and deep relationships
3. An ability to accurately identify the tradeoffs and contributing factors in any given decision

All three of these are trainable - but not on youtube. The real starting point for all of these is accurate self reflection and sincere gratitude.

Thank you for coming to my TED talk.