Dang it! I'm tired of having to go back and forth between my home computer (which has no internet) and school computer (which is the accursed Mac)!
If this is on a school computer then your user permissions are most likely tightly controlled by an IT Administration Group some place. You could
ask for the appropriate permissions but having worked in IT for 35+ years I would say the permissions are tightly controlled for a good reason.
Pro Tip: Schools used to (and may still) be hotbeds of malware activity, back when everything was done with floppies (look it up
) because nobody not working in the industry believed viruses existed or could hurt you, hence the strict controls. School systems without strict disk quotas quickly run out of disk space because of downloaded music and videos... I had one high school that had this problem because a "Computer Science" teacher showed kids how to CTRL-C out of the login script that set up all the quotas, and consequently the shared printers, which was the problem I was there to fix.
We had a buddy just format a bootable floppy on a school system, which we then proceeded to clean of no less than 30 viruses just to show him how his home computer got so torqued.