I find the game a bit confusing, especially the description of the mercenaries are not always clear, some cards have cyrillic characters. I also had a bug that displayed combat mechanics during the healing scene (solved with loading a previous save). All in all, it is still a pretty early version of the game but to answer your thread question: if you enjoy making this game and you have some time to do this, then yes you should continue. I understand that motivation sometimes is hard to come and I know that in every coding project, there will be frustration due to the code not working as intended. You obviously built quite a lot on the renpy engine so it naturally has to take time. A few tips that I can give you (as I have some history of abandoned similar projects on other forums) is to establish a clear list of objectives, early on and for each stage of the development and in written form, to have it always on hand and to not give in to feature-bloat.
All of that said, I wish you the best for the future of this development.