Dude, you need some handy friends. A complete new fixture costs less than $20, here's a 2-pack I've gotten a couple times:
https://www.homedepot.ca/en/home/p.t...000142015.html
It's also unlikely you damaged anything electrical, you'd just need to replace the smashed glass. The glass bits are usually pretty standard sizes/shapes. You can sometimes find what you'd need for like $2 at ReStore.