I'm leading a 40 people team, and it's going well. How did I get there? By chance. Another hackathon resulted in the right industry at the right time.
But also 12 years of exercise in pitching, structuring information, data, setting up on organization, addressing all kinds of different technologies and all of that.
You are learning so much and you feel treated unfairly by not being able to show it off. Keep on going. Maybe go back to work for 10-12 months for some stability and to take a break, but then try again.