Isn't giving up easier?

How do you deal with feeling trapped in a situation that seems to have no way out?

My job is destroying my health little by little. I’ve gained 30 pounds in the past 4 months or so. I haven’t been maintaining my blood sugar level and my blood pressure is up. And I know my job has gotten so bad that I just find myself not caring anymore. So just find a new job right? Except with my eyesight I probably won’t be able to. I’m reaching my breaking point where I’m worried I’m just going to walk out, but if I do that I won’t have any health insurance nor will I be able to pay my bills. So either my job is going to kill me or my lack of job is going to kill me. And little by little I’m losing the people in my life that I feel like I can talk to about the situation. Or maybe they were just never really there.