You might have jumped the gun a little bit. But what's done is done so now you have to put your head down and barrel through it. I would take gspyrou's advice, just get to work.
For posterity's sake, when would have been the right time to leave? Keep in mind that the nature of my previous work is such that I did not have spare time on nights/weekends to continue working -- hence I just cut the umbilical cord :)
Don't second guess. What's done is done and now it's time to get to work. So get to work!
Then maybe you did leave at the right time and are just having a window of uncertainty. It will pass. What's important is that you have the savings to survive what could be a lengthy process. I couldn't have done the same but we all have different situations.