Maybe humanism could be a good complement to skepticism. Humanism includes ethical values, which skepticism doesn't have much of in and of itself.
But humanists are very religion-focused, as if religion is the only form of unreason. This is somewhat off-turning.
This has not been my experience. To me, you are describing atheists more than you are describing humanists - specifically that sub-set of atheists who are antitheists.
And they really, really need to stop claiming the non-religious demographic in general as humanists.
Yes. You are a humanist if you identify as a humanist, and your personal philosophy broadly agrees with humanistic principles. There are nonreligious people who are not humanists.