I hope it went well!
Everyone has to go into practicum and everyone is nervous. The associate teacher you were working with also had to do a practicum before they became a teacher. The students are usually happy to have another teacher with them (particularly younger grades) and/or don’t care (most older grades).
If you take it one step at a time and try your best, you should be able to work through anything that comes your way.
Teaching In Real Life 