Congrats on the leap. As they say " you're network is your networth" I am a business owner and it take a lot of work, new ideas and always trying to be creative. It's not a 9-5 it's a 7 days a week to always find solutions and i'll take it everyday all day to live the way i want to. You only live once so might as well jump.
As far as knowledge that always comes in time. It's the most valauble thing a person will ever have in their life.