Brexit represents an opportunity to rebalance the UK economy and achieve a balance between imports / exports.
Are we as a country willing and able to expand our exports ??
The risk is that the economy falters and imports drop to the level of our existing exports rather than an increase in our exports, particularly with the end of the North Sea oil revenues.
Tourism is possibly the easiest sector of the economy to grow post Brexit, but relies on ease of foreign nationals travelling in and out of the UK. At the moment the talk seems to be more about raising barriers to entry !
As a linguist I think that you are probably in a better position than most of us to benefit from Brexit :)