I hope you brought some time!

For now you have some limitations to think about. First of all, you will have a hard time getting pictures of Birds or wildlife animals that are shy, which at least in Europe is pretty much anything besides snails.
So what are the advantages of having an 18-55mm lens?
Well for starters you are able to focus to an are closer to the lens than if you were using a 200mm. So Macros or semi-macros are an option. So basically anything that is either really small and then fills most of the image or textures that the human eye wont see from afar. Also try to get used to shooting in "M" (manual) so you know what settings change what aspekt of your image and you get a better idea of how to set you focus at any distance. When the camera is set to Autofocus, you wont always get it to focus right.
Another advantage may be, and this is a matter of taste, that at 18mm you will see some deformed edges that curve a little bit, kind of like a small fisheye. So you can use that distortion to focus on something that is deadcenter, instead of a RoT point. So start taking pictures at totally new perspektives (like below). Yes it has been done before, we have all seen it, but it will still make you feel better, knowing that you can do it as well.
At last you can try your luck with panorama shots, though I got to warn you. Depending on the Time of the day and the wind/other weather changes it can be very hard to make it look like one picture.
Also If you don't have one yet, get a Flickr account and join the following two groups:Flickr Central- the bggest group on flickr open for anyone with over 5.35 million pictures, thousands of new ones added daily. One user can only enter one image a day, thus this only goes to show how many users are there. It is almost guaranteed that at any time of the day someone in the world will look at the group pool and see your picture, open for critique and help.
http://www.flickr.com/groups/central/Explore my Photostream- Basically says it all except that once you join the group it asks you that after adding a maximum of 1image/day to check out the other peoples pictures and leave at least 5 quality comments. Thus you also have a good chance of getting some nice feedback.
http://www.flickr.com/groups/exploremyphotostream/Below are some links to useful accounts and websites:http://www.digitalrev.com/article_categ ... ips/Mw_A_Ahttp://www.youtube.com/user/PhotoExtremist/videoshttp://www.youtube.com/user/the365daysproject-virtualTune