The most you have is online platforms and looking around the street for people to hire you as a filmmaker. The only way to get more opportunities as a filmmaker is if you get a degree and ask people in charge to hire you, which I believe would still have less chances than before. Any start-up business takes months and years to perfect. I think really what you should do is get a good paying job and then focus on filmmaking on the side, granted of course for the opportunities you will get. But still though it is like winning the lottery... The finger scratch card lottery where you keep on buying and it only results in getting 2 dollars to 50 dollars back.