Awwwww Sis
You have 6,521 things going on at the same time. Of course you are trying to handle all of it all of the time. First off you need to take care of the Physical problems. that could be 50% of the stress issue. The job issue ... You have some time to figure out what you want to do.
When those pesky tears just come flying out of your eyes, just let it happen, It's a release valve.
ADT .. try not to think of it as a waste of time, It was a job when you realllly needed a job, You were concerned you couldnt handle it ( I remember your worries and fears back then) But you handled it ! You did that! So Pat yourself on the back.
Your exhausted on every level... Take time to pamper yourself in any way you can find.
I'm always here for ya