Right at the beginning, when the referendum result was announced, one politician said that it won't be as bad as you fear it will be, and won't be as great as you hope it will be.
All changes pan out in the end, and everyone learns to adapt to whatever the new norm is. For a while, especially if we are forced to crash out with no trade agreement there will be a period of time when the pound drops even more in value, and there may be shortages in shops, medical supplies and so on. But eventually we will recover. We will make new trade deals across the world. The pound will eventually bounce back. Look at how strong it once was by comparison with the Euro a while back. That's significant.
Not all is well with the EU. Its failure to deal with mass immigration and the loss of the UK, as well as failing economies within it, are all going to have a future effect.
What will be changed, is our ability to cross European borders with the ease we did previously. We will no longer have the right to do so. But neither will we be forced to house, school and medically treat all those people who previously had the right to just move in among us. Already I see many more notices for employees wanted. Some claim this is a negative and we will struggle to fill lower paid jobs. I say this can be a positive and an opportunity to teach our own people that work is the way to go and that there's no shame in taking some of the jobs that Europeans have been happy to do.
So, give it a while to settle down and all will be well. Different maybe, but well.