I can't access or change any content in my website

I have no idea what version of WordPress I used- it’s been about a year since I lasted logged in. I need to change some information in my site, but when I logged in, everything looked different! There is no button for accessing my website, like there was a year ago! I still pay $9.00 a month to Hostgator and also another amount to GoDaddy on a yearly basis. My website exists- I just cannot access it with the new look of WordPress. It says I have no blogs- which is idiotic.

https://rejuvenatingmassagebyjohn.com/

I just need to change the email address, phone number, new pictures, and prices. How can I login? I know nothing about codes or weird computer stuff- I just fill in the blanks when I change stuff in my website, just like a normal Microsoft Word or Notepad document. Please help!
John

[ Please do not post support topics in the Your WordPress sub-forum. Moving topic to How-To and Troubleshooting. ]