My cursor won't click anything after my brother used the keyboard—help!

Have you tried just restarting your laptop? It’s often a quick fix for weird issues like this. If you're unsure how to restart it, you can usually do it by holding down the power button until it turns off, then turning it back on. Let me know if that works!

Just a heads-up, if you're planning to make any BIOS changes or something more extreme, remember to back up your data first. It's best to be safe, you know? But restarting should be your first move!