Hi. I find the easiest way to get the correct size last is to get someone to trace both feet (most feet are different sizes). Use a thin pen or shave the side of a pencil so you are not including the size of the pencil in your tracing. If you can get to a place that sells lasts then it is simply a matter of holding the last against the tracing to get the correct size. If you are buying on-line then you can measure the length of you foot and use a size conversion chart. Allow about 10mm extra in the toe. I struggle with width sizing as I cant seem to find a chart that converts width. In regards to the style, I would suggest a classic men's style as a starter. I tend to choose my styles based on the shape of the toe. I too am just starting out. But there is nothing more rewarding than putting on a pair of shoes you have made yourself! Good luck!!