Happy New Year Jean,
You are doing great with the Walking.jogging program. Slow and steady. Yada Yada. You are a smart woman to use this approach. You will definately be able to do the 1/2 when you are ready.
Sorry to hear that your son didn't get into Yale. I will pray that he gets his 1st choice. The waiting is torture though, isn't it.
Take care,
beth