Get a psychiatrist and a therapist. Try to motivate yourself to excersize (that might help). Get a hobby too, just something to get your mind off it. Take baby steps to get your life back. Rome wasn't built in a day, ya know? Take one day at a time. If your meds aren't working, let your doctor know. It sounds like something isn't working. I don't know enough of your history, but if your on meds, they aren't working properly. If you're not on meds, you should really consider it. Meds don't solve the problem completely, you have to put in a reasonable amount of effort. I am by no means an expert. I suffer from GAD, and I've just been taking baby steps to get my life back.
I can recommend one hobby to get into: watching movies! They help me a lot, maybe they will help you too. Do some fun stuff once in a while too if you don't already. Don't be too hard on yourself. It's not the end of the world, but rather a beginning where things that you do from this point on will only make things better.
Hope I helped!
"Getting an idea should be like sitting down on a pin; it should make you jump up and do something." -E. L. Simpson