Could you please confirm which version of Lightroom are you using?
Which operating system : Mac or Win?
Refer this link to reset Lightroom Preferences : Recover catalog and images after resetting preferences
Ironically, renaming the files is what the faq told me to do on the lightroom help page haha
GOOD NEWS! I fixed it. I opened my task manager and noticed there was something like 32 lightrooms running in the background for some reason. After I closed them all, light room opened. Thanks everyone!