I've been through 7 or 8ish companies in 7 or 8ish years, have burnt out horribly, have at times sacrifices my mental health for that of my employer, amd have been fire or otherwise let go from 6 companies. I think the gaps in employment may be an issue, but otherwise I think it's less that my record is bad and more that finding good work is grueling in tech. So if you quit and find a new job or if you stay for longer and find a new job, it is probably going to be difficult. Also, never sacrifice yourself for your company beyond reason.