This is an interesting one because how I'm seeing it, the goal of this isn't ultimately to be a game, but rather to be a productivity log/tracker with a minigame cooked in. Also, you mentioned that you made it not only for others, but also to keep yourself organized. And with that, I think for me at least, I have to look at this through an entirely different lens of, how does this function as a planner? As a tool for tracking tasks, I like that you add side quests and also let people adjust the parameters for how often they plan to do things, how much the task actually counts for, so if you've got the time and attention to detail to break down a task and come back to the planner then I think it's a cute way to keep everything organized. And as a game, I didn't play too much but I very quickly felt myself getting swarmed by the enemies by around level 7 or 8 - maybe I should've thrown in more completed tasks to see how it felt to play from a stronger perspective. I think for me that's the thing about this is that yes, I can ultimately use this as a planner with a reward being built-in if I want to play around with the arena mode, though if I'm actually looking to play this primarily for the arena mode, the only thing stopping me from completing imaginary tasks and beefing myself up to infinity is myself. It's definitely a matter of "use this how you want to use it", whether it's to use it as intended, where you make tasks yourself to grow and get better, or create a bunch of random tasks, and check them off at 100% completion to get your attack up and mow enemies down. So at the end of the day, you can be someone who cares that you're not progressing in this as much as others might be because you're using it as a tool while they're using it to get beefy in arena mode, and ultimately it's up to the user, and part of the intention of this being made is that the intended user was you. All that to say, it's really tough for me to judge it as "good" or "bad" for the sake of whether it was a good submission to the game jam for voting purposes, but I appreciate that you shared +1 tool from your toolbelt for the community, if they want to use it.
Also you mentioned that the house isn't implemented yet - no idea what the house is supposed to do.