Caregiver Burnout

I do believe it's finally hit me. I am literally, completely, totally burned out. Bone tired. Exhausted. Don't know which way I'm going half the time. Crying at the drop of a hat. Bob started Outpatient Rehab, but too early for any results except that my back is killing me---man, that wheelchair is heavy... and we're scheduled to go three times a week, plus doctors appointments. I don't know how I'm going to keep this up not to mention how we're going to pay for it.