Getting eaten by Stress at work

I've been in my new role for over a month. Losing weight week per week due to being too busy and do not have time to eat lunch at work. Sleep also eludes me, only sleeping for five to six hours a day because I get woken up by my thoughts about work. Stress at work is slowly eating me, my life and personality. I've been reading and watching videos on how to control and avoid stress at work but it still goes back. Am I that weak willed? I'm afraid to make mistakes, afraid to disappoint people, afraid to lose my job because of my monthly bills. Maybe I need to pray more? Find guidance from above?