Why not download the developer edition and install it on your own machine? Then add the sample databases (AdventureWorks, Contoso) and you have a good starting point.
Keep an eye on the threads posted here and start answering some of them, if you can. It's an excellent way to learn.
If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.