If you want to get paid, you have to make stuff people want. When I moved into tech from language teaching, I focused on JS, specifically Backbone.js and CoffeScript. I wasn't specifically interested in front-end work but I did it because that was what people wanted to hire for. After getting some experience and some money, it became much easier to transition to adjacent roles.
It might take you a couple of hops to get there, but I think the fastest way would be to limit yourself to what people want to hire for and then pick the one closest to your interests, excel for a year or two and then use that professional capital to pivot closer to what you're really interested in.
It might take you a couple of hops to get there, but I think the fastest way would be to limit yourself to what people want to hire for and then pick the one closest to your interests, excel for a year or two and then use that professional capital to pivot closer to what you're really interested in.