When you say your company dropped support, do you mean they were providing it directly and now aren’t, or it’s no longer part of your health insurance?
I’ve worked at places that did both. Check your health plan. Most decent ones have mental health coverage.
Don’t let coverage stop you from getting help. From experience, there comes a point when staying just won’t be an option. Your body will make the decision for you.
I started a sabbatical right before all of the layoffs started. It was a little spooky at first but it was also the best decision I’ve ever made.
Also worth looking into taking medical leave. Easier if you’ve been speaking with a therapist and/or doctor who can help justify the leave. I almost did this but didn’t want any pressure to return.