Have ever tried using circular needles? From your description, it sounds as though you've only used straight needles, which in my opinion, are much more awkward to manage.
So although with circs you would probably have to learn a new way to hold the needles and possibly a new method of tensioning the yarn, you also might find them easier to manage because of their shorter length. If there's a local yarn store nearby, they will sometimes allow you to try needles before you buy them. Or check on Ravelry to see if there's a group of knitters that meet near you. Often, they will let you try out their needles on the spot!
The great thing about circular needles is that you can use them for flat knitting, as well as for all sizes of circular knitting. And did I mention they're shorter and less cumbersome?