I feel like I have some kind of perfectionism that forces me to make a feature look good enough before moving to the next one.
This also means that I often end up messing up my own schedule and fail to finish my game in time during like... most of the jams I participated.
Thankfully, I actually remembered that I suck at following a schedule and made sure to only do the bare minimum amount of features this time.
(Still couldn't implement most of the dialogues in time and had to do that for another day after the submission due, though.)