Ok, here is a list of things that, 의해 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 벽 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 날짜 (or life).
3.Quit researcing his family tree. Every normal person would. 다음 thing will probably be that Galbatorix is his grandfather and Elva his sister.