It’s great to see that you are controlling on the Training Server and looking for feedback.
If you’re interested in applying for IFATC in the future, then I strongly recommend creating an ATC Tracking Thread. An ATC Tracking Thread is a great way to announce when you open set frequencies as well as a place to collect and gather all the feedback in one place.
Check out the guide linked below for information on how to create an ATC Tracking Thread: