I have finally fixed my PC and now I should be able to go back to normal c:

Computer issues TLDR (if you care haha):

• 1 CPU fan unplugged somehow (blame cat, always blame cat)
• Thermal Paste casualties, had to reapply
• Fan only directed to Motherboard not CPU, had to redirect
• Something Bios
  -Left alone for 2 days
• Now it's happy