Operating system crashed need help

My system/Os crashed Sunday night and I had to create a new folder/partition on c drive. It is a real mess. my video is dysfunctioal and hurting my eyes and all my info is God knows where, while I try to resolve this crash.
I tried to login 2 times and failed. I know I typed the words correctly, but at times today my keystrokes are not being communicated accurately. Just in case, I would appreciate your sending me my info. So many computing things are in a state of chaos for me that I feel quite overwhelmed.
I am so glad I found your community. I found it through Cnet Downloads.

Thank you so much.
Sincerely,
Allessandra Montgomery Parrish