How do you do well in your clinical as someone who's more soft spoken

I just been reading feedback from my instructors and they mentioned that they thought I lack confidence because I didn't speak up enough. However, they said that my write ups were really good. Also I did speak up but they didn't like how I did it. My voice is naturally not as loud. If I do try to project a louder voice, it comes off like I'm trying too hard which is why I speak softer.

Not afraid of taking initiative at all. It's just the voice.

So I'm curious how would people who went through clinicals would advise me. Is this something I need to work on or was that just Mt instructors opinion?

Just want to do well clinical year