I'm trying to edit my profile and having very little luck. Is there a way I can just delete the whole thing and start fresh?

Hover over the "Personal" tab of site navigation (top right of any page). In the dropdown menu you'll find "dashboard" (4th from the bottom). Click that. On the dashboard page, select "profile" (3rd from the left). You can either select "reset profile" or you can delete anything in the "profile text" box.

Thank you! I think I've successfully reset it. Now to start all over again.

There are some nice pre-made profiles available if you'd like! Subetagraphics Subetalodge

I'll look at them thanks. My problem was I had some old images and some old videos that I couldn't delete and were just getting in the way. They're all gone now.