How much can the human heart take?

Sometimes I wonder how much the human heart can take before breaking, thus causing loss of one's self. What do you do when you reach that point? You can only repress so much sadness and hurt before the spillways open to relieve pressure. The question is, can the spillways be closed again?

I think everyone is aware of my mom's health and now, because there is no one to help out with the mortgage that she shouldn't even be responsible for, the house we all grew up in is in foreclosure and she is very likely going to be put on the street. With her medical problems and inability to even get out of bed by herself, I'm honestly not sure she would survive loosing her house.

I'm just not sure how much more I can take. I try to keep busy and repress as much as possible but, it's just getting too hard. There just doesn't seem to be light at the end of the tunnel.

Just wanted to get some thoughts out on paper as it were.