Toxic workplace

Been at a super toxic unicorn for 2 years now at a middle mgmnt role. Layoffs happening all around. All leaders being laid off. The remaining ones don't see eye to eye. Leaders don't support even if things go wrong - expect to solve their flawed processes without any intervention/support. Haven't received a hike/promotion despite good ratings, numbers etc. They are cost cutting. Would you advice tiding the wave till a promotion or lay off or just leaving it for health. Currently sleep, anxiety issues at peak.