One year ago on the 22nd of this month I thought my life was pretty much over. I was doing pretty well in spite of having been divorced after 30+ years and at 71 years old. In the three years prior I had gone through that divorce, been forced to file bankruptcy, and lost my home of 30+ years My profile picture on the left is outside the house I once owned. It was a rough go but I managed to survive. I was drawing my Social Security and had a small job (at least it was supposed to be small but we all know how that goes), living in a decent apartment and driving a pretty nice vehicle. In short, recovering nicely.

Then last January it changed in a flash! While driving in the city I suffered a heart block episode, partially lost consciousness,ran into another vehicle tore down a traffic light and totaled that van. Before that day was over I had a great ambulance ride to a cardiac unit

and left there with a shiny new pace maker and lots of co-pay bills; and since the job I was doing required that I use my own vehicle, that was gone too.
That was when I got real close to hangin' it up and saying the heck with it. This is more than I can handle. You're an old man and your life is over, no sense fighting the inevitable.
However I do possess a rather astute gift of memory (which at one and the same time is a blessing and a curse) and one of the things I remember is someone saying "You're never defeated till you give up". Between that and dealing with the inconveniences of no vehicle after having driven for over half a century, I found myself finding the fortitude somewhere to pick it up and start again.
Never let anyone tell you that a misfortune is the end of life for you. Today I've found a new part time job that is easier on me than the old one, I have a new apartment which is much nicer and roomier with no stairs to climb and NO ROOM MATE, and I have a much newer vehicle that fits me far better than that huge van. 
Sure, I'm still paying off my co-pays and the car took an auto loan to get but with my SS and job income AND working with this company that I've just begun and am
already seeing results, those things will not be a problem.
So if you're ready to quit, if life seems overwhelming right now, don't quit! At my 72 years, if I can find the strength to carry on, no matter where you find it, so can you.