What kind of atheist would you consider yourself?
One who doesn't really care.
or
One who actively looks to disprove any form of higher being, is fairly serious in their disbelief that they treat their disbelief like a religion.
I care very much. I don't think it's irrelevant. I think it matters. I am also agnostic in a sense. I didn't actually scour the folds of space and time and found only an absence of gods. My philosophy on life would take several pages to summarize. If you're interested you can read the debate I had with Atheist Preacher.
https://jazzfanz.com/showthread.php?9826-Why-I-think-being-a-Muslim-is-rational
It's a few pages in.