Every drawer full of unfinished projects is a museum of the person you almost became. Pick one and finish it.

Unfinished things pile up because starting is exciting and the middle is dull, not because you are missing some quality other people have. Every one of them was a real interest at the time, so the drawer is basically a list of directions you genuinely liked before the term got busy. It is evidence, not an accusation.

Go through the pile and pick exactly one, ideally the smallest. Finish it badly this month instead of perfectly next year. Then throw out two others on purpose, because deciding against something feels completely different from avoiding it.