Should I lower my accent

Hello,

I am 24 years old, have been living in Germany (Berlin) for 5 1/2 years and have completed an apprenticeship as an actress here.
Before that, I lived in Brazil, so I still have a slight Brazilian accent despite my intensive German training.

This doesn't bother me, and I don't have any problems in my private environment, but I think that it is an advantage for my job if I can speak German “completely” without an accent.
In a nutshell, I want to lose my accent completely.

My question would be, who do I contact exactly?

There are speech therapists, speech trainers and possibly other speech therapists.
Here I am not sure who exactly I should turn to.

In addition to my actual pronunciation, it would also be important to me to fall back on a certain vocabulary and to know basic German idioms and more complex words and to use athok.

I have already informed myself at the Goethe Institute about the second thing and thought of a kind of intensive German course. I am aware that I have to read, write and speak German and I am working on it. however, I would speed up the whole process as much as possible over the next few months.

I hope someone here is familiar with this special area and can help me.

My friend wrote this text for me. Especially with more complex texts like this one, I have problems and would like to be able to write them myself in the future.
Many Thanks.