There are always options. Joining the EEA or the EFTA which the UK was a founder of are a few amongst many. It would have at least fixed the Northern Irish backstop. I wish you the best of luck and pray Scotland and Northern Ireland to not secede and that free trade agreements with the EU are maintained. The EU might not be rosy but it's a better option than full self governance for my country. Too bad we won't have the UK to put a break on German and French ambitions.