Help my blog dont load

Hi to everyone.I went to dashboard and then to general settings and change the wordpress url adress and the site url adress.After this i cannot logged in to dashboard(i do not tested if other pages except home page-static page worked).After i went to phpadmin of my host company and went to wp-options and change the url of siteurl(i wrote my old url.I do the same to another page except siteurl(i think it was home) and then my dashboard worked.I have read that it was a way to make your dashboard load again and it worked.Now i can enter to my dashboard but my pages of my blog do not load except from home page-static page(as i said before i have not tested after changing url if other pages except static page-home worked).Plz help because i have been working to the blog 4-5 hours everyday for about a month.I do not have experience with blogging (only one month) so i need help.Waiting for quick reply.