You should submit a tax declaration regardless. Either it’s required, or you’ll most likely receive a refund. So no, there is no harm; on the contrary.
Since the original poster likely won’t do this anyway, this discussion is pointless.
As a takeaway message: Just submit your tax declaration, even as a working student. In most cases, you’ll get some money back. And send it to your Finanzamt (tax office), not the IRS. The US won’t process your German tax declaration.
Cheers
The skin isn’t an organ. Meddl leude
/s