Front end of my site is scrambled

Hello, I’m hoping someone can help because I’m now becoming quite desperate to get to the bottom of this issue. I reached out to Bluehost chat support last night for help with what I thought was a tech issue. I was not able to upload images to my media library without receiving an HTTP error. The person on the chat would put me on hold periodically and then come back to ask me to test the action again. Each time I would try and upload a file but would get the same results. Little by little, more and more images would show up as broken links in my library and now the front end of my site is in complete disarray. The support person never told me what they were actually doing to try and fix the problem, they just ended the chat saying they’d tried everything they could. What was also strange was they said they were seeing things on my dashboard that I was not seeing. Now Bluehost says they are not even able to restore the backup. Up to this point, I’ve been very careful about security and keeping everything up to date. I backup my site every evening. What the heck can I do besides start all over again from scratch??