Here we go again?

I need help. Mental help. So, before my ombre hair adventure I had black hair for a couple years. I've always loved my hair when it is dark. There is something about it that boosts my confidence. I've had my ombre hair now for a few months and I love it. I really do, but Pinterest has ruined my life and I keep seeing pictures of beautiful dark hair and now I'm feeling the urge to darken my hair again. Not to black, but to a dark brown with black lowlights. I'm not exactly sure how to make black lowlights a thing on my hair, but thats what the caption said for this amazing hair picture:

Should I or shouldn't I? HELP ME!!