Man, that's a tough spot to be in. Your young age helps - you can still start from scratch and not be too much behind. I do not fully understand why you respect your other founders if they didn't treat you right. Even if what they did is within legal bounds, it certainly sounds like it could have been handled better (of course, I only know your side of the story).
Outside of what others have suggested, I recommend spending a year or two working at a larger company to build your reserves, and to build confidence that you can go and do something like this again. You can keep exploring opportunities on the side while building your bank account, resume and experience.
Outside of what others have suggested, I recommend spending a year or two working at a larger company to build your reserves, and to build confidence that you can go and do something like this again. You can keep exploring opportunities on the side while building your bank account, resume and experience.