How about instead of failed miserably you restate the goal in a way that makes it achievable? Sometimes if our goals are too bid we don't even start because it's seems like to big a mountain to climb.

How about starting out walking for 10 minutes 1x/wk?

I know when I start trying to be too ambitious with my biking, I don't enjoy it as much and so tend not to ride as much. So I step back and reassess.

Me 57/H 58
M36 S 2.5yrs R 12/13

Let me give up the need to know why things happen as they do.
I will never know and constant wondering is constant suffering.
Caroline Myss