Different places give different numbers but for every 20, 80, 100 applications you fill out, you might get one interview then for every ten interviews, one offer. Numbers might be even higher. Bottom line, don't get discouraged. It will take time because millions of other people are applying too. If you're not chosen, not the right place for you.
Read on a different board someone filled out 600 applications before landing a job. Same message of persevere, it will happen.
Don't worry about centene and what they're doing or not doing. And as others have said, think outside healthcare. Apply what skills you used there to other types of positions. You just have to get creative in how you present those skills. If you really feel you can do a specific job even if you don't have direct experience, then sell that. I've never done "XYZ" but i did do "A" which was similar in that I had to do "123." So you may not have that specific experience but you have the capacity to learn it because you were able to do 1,2,3. You just have to figure out what skills you come the closest to matching and sell it. Good luck.