I didn't "just go for one." I spent like a month trying to volunteer , for anyone. I was on medical leave from work at time time so I had plenty of time to give. Nobody ever got back to me or picked up the phone. It was worse than applying for a job. I have an anxiety disorder, so even reaching out caused me massive stress and anxiety. So I caused myself distress to feel more worthless than I already felt. My heart is racing and I'm on the verge of tears just typing this up.
So I'll ask again, how does one "join a volunteer organization?"