Yes, it's called youtube! Search for tutorials there on whatever you want, the quality vaires widely but there are literally hundreds of thousands on there so have a good search round and find a presenter/series that has a good number of videos and select the ones you like.
https://www.youtube.com/results?q=photoshop+cs5+tutorials
However if you are truly a beginner you should look for 'basics' tutorials first so that you understand the concepts first such as tools, filters, masks and layers as these are fundamental to doing anything in the software, simple or complex.
The key is to understand WHY a step is performed father than just doing it because the tutorial says so.
Good luck.