Field day exchanges were randomly selected, which gave each exchange an equal probability of being selected. If you would like a slightly easier challenge, take a look at the Field Day Exchange, which selected exchanges roughly proportional to participants in 2019, which means that some types of exchanges are much more common than others.

For each exchange, try to head-copy it. First, the phrase is sent in Morse code. Then it is spoken. And finally, it is sent again in Morse code. If you missed something the first time when it was sent, the second time allows you an opportunity to learn it.

I wish you all the best on your Morse code journey! 73 de AD0WE