Hi @SierraRoberts ,
This would need to be configured by an account admin at your institution, a teacher alone cannot edit permissions for user roles.
As a teacher, I recommend using the Share Content feature or sharing your resources to Commons, especially if you want to minimize accidental editing of your own resources in your course. You can also use a master course with everything you guys will be using and teachers (ensure they have editing rights) can copy content from that course into their own courses and edit it there.
Here are some more links with additional information:
How do I import and view a Commons resource in Canvas?
How do I use Commons?
How do I manage content shared to me from other users?
I hope this helps,
Noah