Purchasing a machine from a store that offers free lesssons, was going to be my suggestion too. If not that, how about checking with your public schools that still offer sewing (Home Ec)as part of their curriculum. Could be an instructor would be willing to give you lessons, for a small fee after hours . Either that or check with your local churches, there may be ladies there willing to give lessons.
Unless you are very good to be able to just read and follow the instructions, which can be complicated at times, I would definitely get some help. Sewing is not one of those things easily learned on your own.
Good luck and I can't wait to see some things you've sewn!