do not change your gamemode friend, unless something has changed and the game ends by force now once the days are over, you are in a better endless mode once the scripted events end (there is missing events and creatures in the infinite gamemode, it is the middle ground between story and ambience mode)
it stays in the story mode section, I just mean the game continues as normal, with random and signal events being possible, as well as the interactable stuff being left in the map- endless mode is just random and signal events with less real interactable event stuff, so it is the worse option unless you don't like arirals and robots and such