No , it's OK, dear
These kind of trainings help u to better deal with customers , and I see they help you to overcome your fear in speaking and get confidence .
U can check on the internet trainings like that and I'm sure you'll find other trainings,too.
And there's another thing popped into my head: see on YouTube how others handled the Ielts speaking task and learning videos on how to overcome fear . Idk certain channels ,"and l can't mention any here ",but u can search .