Value and Impact

Life coach here.
How do I know if my work is giving value to people?
My thoughts are
This isn’t valuable.
This won’t make a big difference anyway.
People are doing fine without my work.
People are already doing fine.
No one really wants it or it isn’t much big of a deal.

I am mainly refering to creating content or my work in general.

I think value is subjective. I could be thinking my work is valuable or is impacting people’s lives. But in reality, it is a just a positive thought that I am thinking and can’t be counted as a fact.