Sorry to hear about your situation. For what it's worth, my advice:
Stop trying to build a startup. Build a business instead. A bootstrapped, makes cash today business. Maybe it's a consultancy specializing in bank software or maybe it's something else that you have expertise in, but stop trying to build an all or nothing startup.
Stop trying to build a startup. Build a business instead. A bootstrapped, makes cash today business. Maybe it's a consultancy specializing in bank software or maybe it's something else that you have expertise in, but stop trying to build an all or nothing startup.