how to loose accent under hypnoses?

Answer 1

I am not sure if it is your accent you should worry about.
If you speak the way you write, it doesn't matter if you have an accent. People will still have difficulties understanding you.
First, you need to work on grammar, and then spelling.
Your question should read: "How can one LOSE their accent under HYPNOSIS?"

Answer 2

That doesn't happen.
It IS possible to lose an accent by going to a speech therapist.