Frustrated at maintaining test scripts

Test automation hasn't been much fun for me since I started doing it earlier this year. Coming up with new test cases and the first time automating them are alright or even enjoyable. But that's only the small portion of what I do everyday. A bigger chunk of my time has been spent in maintaining the test scripts. They break horribly every single week! Mostly due to various tweaks, changes, polishing ups the dev team check in. We have to be agile, we have to embrace change, and I have no complain with that. But I have to find a way to better adapt to the changes. There has to be a way. I can't believe the millions of test engineers are doing this everyday and still love their jobs.
So far I have been looking into Model based testing. It looks promising, at least for the logic and sequence part of testing. I'll try it out and see where I can go from there!