Hello , I am a speech Pathologist from germany and live in the US now.
I would definetly try a speech-voice therapy!!!!
There are multible choices to help you to get back to a better voice.
It depends on were exactly the damage has happend; on the voice cord itself or is a nerve damaged etc.
There are different methods to fix this, but will definetly take a little time.
I would not take another surgery before trying at least one therapist!!!!
If you have more questions about it, pls let me know.
Good luck and healing wishes