If my patron God is Maahes and my matron Goddess is Nebe-het (Neftis) and he's a god of war while she's a goddes of chaos, is it a bad sign? I know Maahes represents things like order and is not always bad, but he was a feared god. So I thought maybe that was a bad sign. I'm really new and just discovered by meditation who my matron Goddess was, so I'm quite worried.
No, that is not. It may just be your nature. Chaos and destruction are necessary in many places and situations and are not always bad things, not at all. Maybe you are going to be needed in pleased of depression, sadness, and stagnation, to change things and break apart a dolce, dull life or situation for people.
That is just my take, though.