Help! I changed my URL and now I can't login

I went into my admin where I went to Settings > General and changed the URL. I purchased the domain animodules.org from godaddy.com earlier that day but did not get the hosting for it. My site was animodules.com and I wanted to change it to animodules.org. So I switched it in the settings and now I am locked out.

I saw a lot of people with this problem but I think mine is more complicated. I went into my control panel and tried to change the url in the database but it still says animodules.com. when I went to animodules.com, the status at the bottom was saying animodules.org and I had no CSS on the site. I tried other people’s methods but after going in the database, it now says “Error Establishing a Data Connection”.

Neither one of the url’s are working and I can’t access the site. Does anyone have another method I can try?