We voted in a referendum to leave the EU. Although the pound has fallen, the UK stock markets (FTSE 100 and FTSE 250) seem to have shrugged it off.
There is bound to be a period of uncertainty, but I think the EU is worried about its very survival. In the end the UK will be OK, although the "European Project" i.e. the move to a federal Europe is in grave danger. As I have said before, we want a common market but not a federal Europe. We want peace in Europe, but disagree on how best to keep the peace.
In summary, I think BREXIT is more about the future of the EU than the future of the UK.