As someone with a paralyzed vocal cord, I can certainly understand your concern about losing your voice. I understand how difficult it is to communicate with the raspiness and the weakness of voice. I encourage you to look at the link that @johnbishop suggested.
Have you looked into treatments for a paralyzed vocal cord? They are available. You will want to consult with an otolaryngologist who is an ENT but who is specifically trained in vocal cord treatment. I had surgery at Clevland Clinic about six years ago. A Silastic implant was put into the paralyzed vocal cord which helped it to close up with the healthy cord. This procedure provided me with a better voice volume. I also have less fatigue as I'm not using all my energy to make words come out.
Before this procedure, I had problems swallowing and also choking. Do you have swallowing or choking problems as well?