The Player's Manual is a valuable reference full of tips on how to play Wyvern. You should take the time to read it all, as it will significantly improve your ability to play the game well.
At the very least, you should read the Survival Guide, which covers the essentials.
We also strongly recommend you read the game's rules now and take a few minutes to commit them to memory. There aren't many and it's important that you know them.