Two silly questions....

I'm not an expert, but it sounds like you might have developed this page in your sandbox.

Copy and paste the work you've done and save it in Word or similar, then go to a new tab and search for the name of the person you are writing a profile for: en.wikipedia.org/w/index.php?search

Assuming the name doesn't already come up, it should give you an option to create a page for that topic/person. Click with that and then once the new page is created, you can copy/paste your content from your other draft in sections, saving the draft section by section, piece by piece, as you go.

Once you're done and submitted, email the team at events@science.org.au with the link to your draft and they can fast track it.

Good luck!