Pregnant and way to stressed for my own good?

Im 18 weeks pregnant and super happy but there are a lot of problems going on in my life. It seems like stress is all around me just waiting to happen. I easily go into severe panic attacks which makes everything 100% worse. i was just wondering if any of you have gone through pregnancy having to deal with stress/panic attacks? Please give me advice how to calm down during one or how you dealt with it. Thank you so much.