Hey aRy, there's plenty of things to learn about PES 2011 on this site!
Just head into the PES 2011 Discussions section and get searching, and you should be able to discover many hints and advice! Here's a screenshot of the search buttons; the search button at the very top is to search the entire forum, whereas if you click on a section (PES 2011 Discussions) and then the search button to the top right then you'll search within that specific section.
Welcome to the site though aRy and you'll no doubt improve your game here!