Took up computer course, never used nor seen a computer in my life. Was good at written tests, now first time to use the lab and first time seeing a PC

Prof: Today you're going to create your own bootable micro floppy disk. Afterwards you're going to load it with SideKick and PC Tools. Turn on the PC in front of you and insert your double density disks as soon as you see the C: prompt
Me: my disk won't go all the way in
Classmate: just push it in until you hear a click then it will lock
Me: still won't *pushes really hard until I heard a crack... my disk was inserted the wrong way... it did lock though*
Everyone in class looks at me and I start questioning my life choices. I could've sworn our Prof's face turned white