Will more mock speaking tests help me improve my speaking?
Many students mistakenly believed that doing more mock speaking tests will improve their fluency, or their pronunciation, or their vocabulary or their grammar. It won't. A mock speaking test is only a way to measure your progress.
There's a simple truth when it comes to improving your speaking score: if you take the time to understand the mistakes pointed out in your feedback and put in the work to fix those problems, you'll make progress. If not, you won't, and just having another mock speaking test will be a waste of time.
If you think you no longer make the mistakes that stopped you from getting the score you need in your last mock speaking test, then book another one to check your progress.