Does this resonate with your own belief?
Humanism is more an ethical process, not a dogma about the existence or otherwise of gods. But in general terms, it rejects the validity of transcendental justifications, such as a dependence on belief without reason, the supernatural, or texts of allegedly divine origin. It is therefore generally compatible with Atheism and Agnosticism, but does not require these, and can be compatible with some religions. To some extent, it supplements or supplants the role of religions, and can be considered in some ways as "equivalent" to a religion.
No....I have no beliefs. Humanism generally is identical to Atheism. Humanism vaguely claimed is, as you posted, by several liberal religions Unitarian Universalists Ethical Culturists Religious Humanists some Reformed Judaism congregations women rabbis et cetera
There is a reason for labels and very good uses too... I always been like my own non religion of one and just for me with my own believes or non believes. Following my own lead until I get lost and then I will blame no one but me. Ignorant to most. But as we decay into nothing... I may be the least disappointed of all.
I use humanist in my description, but do not accept the whole of the concept. I use it because I think the human species is indeed something special in our world and is worth supporting in spite of its shortcomings. I think perhaps I shall drop it from the list.