There's no requirement to speak. I'd suggest listening if that's what's helping you. And when you're ready to speak, do so. I attended many AA meetings and never spoke. I was totally ok with that. If anyone pressures you, that's on them, not you.
I suffered greatly from social anxiety in my 20s. It's lessened with age. I feel much more comfortable in my skin these days. I'm sober over three years and in my late 30s.
I learned to be ok with discomfort until I sort of grew into myself, if that makes sense. Staying sober improved my self-esteem, and I've watched my social anxiety diminish.