I started my company in October 2011, at the age of 23. It was far too early for me, I just didn't have enough experience, enough of a network or enough knowledge of business.
However, I took a part-time job, working three days a week at a local charity. I delivered film and media projects with young people. This was my apprenticeship, I was able to take risks, learn my craft, discovering an aesthetic, and build up a really useful network.
And, I continued to work on business in my spare time. Only taking on projects that I was passionate about.
At the end of this month I leave my part-time job and continue with my company full time. At this moment of time it's incredibly scary. But, I wouldn't change things for the world. I have a number of projects lined up. And, I know the network I have built up over the years will be key to any future success.
The one piece of advice I would give is know what type of filmmaker you want to be. What is it you want to direct/produce and why. I think when money is involved it's too easy to take on projects because they pay the rent.