Help setting up a subdomain using freenom

Hello. I bought a free domain using freenom, and I tried following the steps to set up a subdomain for my server, but it did not have the "NS" setting for type. Right now, I have it set as the main domain, but I want to set the main domain to a website, and the subdomain to the server. How do I do that with freenom? Thanks for your help.

-James

Okay, I'll try that once everybody is off my server.

Oh, okay. Umm, I was confused at this step of cloudflare, can you help? (Image below)

EDIT: I just clicked "done" and moved one, I'll tell you how it goes!

What is all that stuff tho? Should I delete any of it? (Because now the nameservers are no longer connected to aternos, at least not yet.)

Okay, thanks.

It worked! Thanks so much! Cloudflare is actually making minecraft faster!