[adrianmonk]

That's a great point. What caused it, and has that been addressed?

OP might want to think about that (if they haven't already) for their own well-being, apart from job prospects. There could be some issue that interferes with being able to handle work in a healthy way, and they can power through it... until they can't anymore. (And then comes separating themselves so time allows them to recover.)

If so, then by addressing that issue, maybe they can not only prevent the same outcome but also have a better time of it in future jobs. A healthier, more sustainable relationship with work, etc.