I would go ahead and give it a try. I have been sewing since I was in Jr. High school. I make clothes, mostly dresses for my grandaughter. Most patterns are not to hard to figure out. If you get stuck, go to www.sewforum.com . The people there are awesome sewers and will help you.
And besides, if you don't like how the dress turned out, you have some scrap fabric to add to your stash! :D