No worries! You've already succeeded because we're here commenting on your submission so I think your scoping was spot on.
I've no idea of your experience with games, but if you're new, I'd recommend seeing this one through to completion if you can. You've done the hard part - come up with a neat concept - and expanding the game, incorporating player feedback and producing a final 'product' will be a great exercise and experience you can take with you to another game and / or jam.
Viewing post in Rhythm Engine jam comments
Well i'm not necessarily 'new' but certainly not experienced. i started during 2020 (i did make games in scratch before then, though those were just story games where all you had to do was click spacebar)
and i've never released a full game before, so i guess ill take you up on that and try to make this a full game (although it would have to be later cuz im already working on another project and ive got really important exams happening at the start of next year!)