Hello Galen,
Sounds like your computer cannot load the OS. Sounds like your computer has a pretty bad Operating System corruption or a Failed Hard Drive. If you have another mac handy you can remove the hard drive and with a Sata cable check it's health with Smart Utility. Let me know if you have any questions.
[guide|282]
https://www.amazon.com/dp/B00HJZJI84/ref=twister_B07735JMT7
https://www.volitans-software.com/apps/smart-utility/