How do I ask for an informational chat? - 9 weeks in

I sent 17 messages on a professional network and got two replies. It has been a long 9 weeks. I worry about bothering people. What did you ask?

I wrote three short lines: who I am, why them and a small ask for fifteen minutes. About one in four said yes.

I asked what they wish they had known at my stage. People enjoy answering that.