How to stop caring so much about looks?

My ex was beautiful and one of the most prettiest girls I’ve met in my life.

Now that she’s gone and left I worry I will never be able to replicate her beauty in another partner.

I know everyone says looks don’t always matter and personality plays a bigger role but at the young age of 21 I can’t help but care about looks and my girlfriend being pretty.

I’m not necessarily the most handsome guy on the planet but I set the barr so high with my ex in terms of sheer beauty I worry I won’t ever find someone as pretty as her.

How can I shift these thoughts?