Is it even possible? Another question, Why does my school even use software from 3 years ago?
If you think it's crazy your school uses three year old programs wait until you find out how many businesses are running XP!
My school is running Windows XP on many computers. Only this year they finally got rid of 32-bit machines.
I've seen BMS software running on Windows XP since 2008! And I mean they still run.
Talk to your IT dept. They might have a student version you can get for cheap.
And btw, 3 years is nothing for software like that. All the major features are already in the software. They just have to keep adding crap to it so people will buy the new version. It's a big cause of software bloat.
I know my school will sometimes use last year's CC versions because they're familiar with it, and it's been tested to work with what they want to teach, so it won't just break or not function as expected out of nowhere. Now why they use 2020's version in 2023 is beyond me, stuff generally does not change drastically in 3 years.