Oh hun, I haven't read the whole thread, but you're starting a new phase of you life. It's scary to do things you haven't done before. If you find that it's not suited to you you can alway go back to what you know and maybe just take a lesser role. But you have been doing it, as you said you just had to take the final leap of faith, so it's not like you're jumping into the complete unknown. You're starting a new chapter, try to embrace it!!