Totally messed up my site :-(

Is there somewhere or someone I can go to and pay to fix up my mess?

I followed an online tutorial to move my site out of the subdirectory and into the root directory. Somehow, I screwed things up (although I’m not sure because I followed everything step by step & it was a video tutorial and I had exactly the same screen info showing on mine).

So I called my hosting provider and they reckon my site is now in a subdirectory of a subdirectory of a subdirectory ??

They don’t offer WordPress support but are kind of looking at it for me.
They seem to think the easiest will probably be to reinstall WordPress but I really don’t want to start from scratch.

How can I do this? Or find someone to do it all for me?

Please help, I’m desperate!