At least by the looks of the screenshots and initial game play, your game does not look like a trivial project, so it is understandable if it is taking longer than you might have hoped. Even from my own small Playdate project I'm working on, I've found a lot of things need to be created, put together, and polished. Due to the PD being a relatively new platform, the SDK is lacking the tools, libraries, plug-ins, and general experienced developer base that one can find with other platforms, so we are all learning as we go along.
I encourage you to keep plugging away, have fun, and hopefully the end product will be here soon.