So, obviously this past year with the "labor shortage" we haven't had many employees, and I've been doing allll the work I've worked 50+ hour weeks there for the past 13 years
Were you paid overtime? Misclassification of employees as "exempt" is one of the primary methods of wage theft in the US.
Just because you are paid a salary (as opposed to hourly) does not automatically make you exempt.
Your title (manager, etc.) does not automatically make you exempt.