This is the only way you can really stay on top of your trading. Allow yourself to make mistakes - and don't make the mistake of being scared to prove yourself wrong - you'll be in a much better position for it in the long run. You have to be comfortable with accepting that mistakes are inevitable, especially in the early stages. It's all part of the learning curve.
The blender company could have reduced this risk by shorting the euro and buying the USD when they were at parity. That way, if the dollar rose in value, the profits from the trade would offset the reduced profit from the sale of blenders. If the USD fell in value, the more favorable exchange rate will increase the profit from the sale of blenders, which offsets the losses in the trade.
GBP/USD bounced off support yesterday just prior to the BoE, and drove further higher in the wake of the meeting. The rally doesn’t mean much so far, though, as price remains well contained within a developing wedge that is seen as leading a meaningful move soon. A break above 13173 could get the upside going, while a break below 12954 may perhaps be even ...
There are scheduled news releases that come out daily, and certain news releases like Non Farm Payrolls and rate decisions have a massive affect on the markets. It is important to know when these news releases are due, and before the start of each month you should make a note of the important ones. I have a up-to-date economic calendar on this site which you can access here.
The problem is that this is where traders are most likely to succumb to overconfidence bias. It's not uncommon for traders to complete a winning streak and then believe that they can't get anything wrong in the future. To believe this is of course unwise, and is only going to end in failure. Make sure you always analyse your trading sessions and look at your wins and losses in detail.