Why keep living? Because it sure beats not-living. You'll have plenty of time to not live after you're not alive anymore. You might as well try out living while you're still alive.

Anxiety sucks. Personally, I tend to feel more anxious when I haven't been taking care of the basics - eating right, getting regular exercise, working on the things I told myself I'd work on, etc.. getting plenty of sleep etc.

The heart can be a fragile thing. You have to keep reminding it that everything will be alright.