I changed my Wordpress URL and it doesn't work anymore

I wanted to change my wordpress URL and I did it in the general settings of wp-admin, I changed both Wordpress Address and Site Address, after that I clicked save and it refreshed with the new URL but it didn't load, I tried going to the old URL and it didn't aswell. conection-refused

So my question is, how can I get to my website again? I need it back asap.