i struggle with the same fears. i listen to the free audio talks on tara brach's website. she has a bunch of them and i will just put them on as i clean, drive, work. i also listened to cds by pema chodron for a long time. both pema and tara really calm me. i also do the meditations on tara's site. hope you find some peace.
Me(f): 51 W: 41 DP:8 M:3 T:10 "W not happy" 7/11 D final: 8/13