Once you make a last, find expert instruction on shoe making. This site has a very informative book and website that shows you though a free video and examples of how to make footwear.
Learning to make shoes by best guess or trying to figure out what an old book from 100 years ago is telling you can be difficult. However, Wilson Gracey takes the guesswork out of boot and shoe making. All of his videos are reasonably priced and you will get expert instruction on each step of footwear construction.
For those who love shoes and want to make them, keeping hand shoe making alive is where it is at these days. To find a serious individual that puts effort into this craft is wonderful to see. He has resources and links for your shoe making efforts. He has even made lasts before : the hand carved log method. Try his link. you can ask him questions and he is very friendly to answer.