HELP! Baby Name Regret!

I am obsessing about the fact that I should have named my daughter a name that matches her brother’s! I CANT GET OVER IT. I regret her name so badly! They are both 4 lettered cute names (but don’t contain the same letters and are different) but when I see them written by one another, I feel I should have matched them somehow like by giving her the same first initial as her brothers name. I just feel like I should have matched their names so there was more of a sense of togetherness.

Can someone PLEASE PLEASE PLEASE list reasons why I did not make a mistake and good reasons why their names shouldn’t necessarily match?? I just really need some sense knocked into me. This is sincerely causing lots and lots of anxiety for me on a daily basis.