I would advise that you get a few sewing patterns and start practicing on inexpensive fabric before you dive in. I also always recommend going shopping first to see what styles and silhouettes look best on you before you start making your gown. Lastly, invest in the right tools. You need an adjustable dress that can be set to your basic measurements, different sizes of needles and sewing machine feet, quality fabric scissors, time, and patience! Reading blog sites such as Mood Fabrics and Gertie’s can provide great tips and advice to help you with your journey.