I agree, I want to learn to make my own 3d models as well, likely on blender too for that reason. I spent 4 days on my game, so I think I had plenty of time to make my own assets if it were the case of me having the skill to make 3d models. Especially after seeing your game along with other games in this jam, I think it is important to learn it.
How did you learn it? Was it via gamedevtv course, youtube, some other resource, or did you just play around in it yourself?