How to change name servers?

Hi

I just registered with a new web host and wanted to keep the domain name the same.

I’ve heard that you need to change the domain nameserver settings.

I believe I registered my domain name with wordpress.com, but now that I’m using wordpress.org (installing wordpress to the website myself turns it to wordpress.org right?), I can’t find the option to change the name server settings.

Can someone please guide me through this?

Thank you so much!