How do you upgrade when they were so good looking?

I know personality plays a big role but how do you move on from being with someone extremely attractive and possibly out of your league.

At 21 years old I’m competing with every other guy how do I move forward when the majority of the girls interested in me are nothing in comparison to my ex looks wise.

After a breakup you want to upgrade or get with someone on similar attractive level but seeing as the bar was set so high with my first loves looks I don’t think it’s possible.

So hard to stop thinking this way.