Jim, The lens shouldn't be giving you that much trouble. I would try lenses that weren't working in hopes that things would get better but they didn't, 5 days later I would quit and the eye doctor told me I should have said something sooner. If it doesn't work right away it's not going to. Learning how to put the lens in and out takes some time but wearing it shouldn't be a problem.
What size lens do you have? Mine is a 15, do you have an 18, it's bigger and harder to work with.
My lens came from Valley Contax, you can check it out online, it's the 15 lens. You can also check out Visionary Optics they have the Jupiter Lens which is I believe where Valley Contax gets my lens.
Where do you live, perhaps you mentioned it before and I don't recall.
My lens wasn't really fitted, no special measuring, just tried a couple different lenses tell we found the one that fit the best. Seems like there has to be a better way for you. So very sorry it's not working out, hope that changes.
Hang in there, Jill