I don't feel a PhD for the sake of a PhD is a good idea.
I can say from experience that you're correct. My feelings on this subject change every time I talk about it, and while I don't actively
regret spending time on my Ph.D and can kind of buy one of my professors' quote that a Ph.D is good for your soul instead of your wallet, it was a pretty painful experience for something that doesn't do me any good right now. If I could go back, I might seriously stop with my M.E. since it's much more directly relevant to what I do for a living and would have saved me 5 years. The culture around academia is kind of cool, but I just do not have much interest in being involved in it anymore.
My advice can only really come from my experience, but it was in a different field (computer science) and different country (U.S.) which may make it much less relevant. Anyway, my suggestion was going to be to talk to your adviser to see if they know of any opportunities. While I was still doing my Master's degree, my adviser was presented with a few internship opportunities that he then forwarded to me, and which I accepted. If you can get an internship somewhere while you're still a student, even if it's unpaid, I'd highly suggest taking it. Work experience is very important. Probably much more important than time spent as a student.
In my case, the internship I took there didn't lead directly to a job opportunity, but it did lead to one a few years later when some of the people at the national lab transferred to a new department at the local university. I happened to already have a job at that point so I declined, but it was a chance I otherwise wouldn't have had.
I don't know
what kinds of opportunities an undergraduate degree in English and a Master's in history might open up, but it doesn't hurt to ask, does it?
Otherwise, I know you said you're not interested in being a lecturer anymore, but what about teaching in general? At least here, in the southeastern U.S., that's what people with those degrees are typically expected to go into, and again, here, a degree in that field is usually enough to be a gradeschool teacher instead of needing a proper teaching degree.