Ok, here is a lista of things that, por my opinion, would make Eragon`s life much easier.
1.Swear he won`t swear anything to Galbatorix in ancient language. That way, the evil king could break through muro with his head and still not be able to control Eragon. And ask Murtagh to do the same (= important part).
2.Stop falling for elf chichs, 70 years (or something like that) older then himself, and get a fecha (or life).
3.Quit researcing his family tree. Every normal person would. siguiente thing will probably be that Galbatorix is his grandfather and Elva his sister.