u/EastRevolutionary398

My toilet seat is loose so I want to tighten it so I don’t slide off the seat when I sit on it (but at the same time am gearing to get a replacement). So I’ve been trying to loosen the screw, so I can see how it works before I tighten it, but it wont move a budge! So I’m stuck on a sliding toilet, can anyone help please?!