broke my site, lol

Hi

tonight i have been trying to update my site. i installed a couple of themes, and after finding one i liked, i began editing…

in the menu ‘settings’ i think i was in general, where it said ‘website home page url’ (or similar) and also the same for the blog. i think, it was a while ago now and it happened so quick, i can’t quite remember.

anyway, i thought by changing the website home page url (or whatever it was) i’d be able to set a different page as the home page, same for blog. all i succeeded in doing was breaking wordpress, lol!! i can’t get back to the dashboard, it’s all gone. if i login (which the page doesn’t look like the usual page, there are no WP pics) it takes me to my website 404 page not found page, hehe!

so i don’t know what i’ve done. any advice?!