It's not simple building a rifle and just like in shop class some are going to learn fast and others are going to make stuff only a mother would cherish. There are tons of resources out there now compared to the 70's. DVDs, lots of books, seminars at gun shows and fairs, tons of online photos of everything, tutorials everywhere, and classes. It's easier now than ever before. But still, it's going to take effort and practice. In addition to books, etc I have binders of magazine articles at home sorted into categories like "rifle building", "contemporary makers", "Early American flintlocks", "golden age flintlocks", "horns", "edged weapons". Learning is a lifetime experience; enjoy it and don't rush things.