Let's see, you have bad dizzy spells, problem with your vision, anxiety and bed ridden because you feel so sick. So why haven't you seen a doctor to rule out any serious medical problems? This has to be your first step then you can evaluate the life changes you need to make to get healthy and hopefully find employment. It sounds like you may be depressed and I will say that healthy eating and exercise can help.
I hope this works out for you.