I too have known joy and sadness, and, on the whole, I prefer joy.
Not being able to do everything is no excuse for not doing everything you can.
The best reason for having dreams is that in dreams no reasons are necessary.
It's human to make mistakes and some of us are more human than others.
I was unemployed for a long time, but I couldn't adjust to the hours.
To always hit the target, throw a dart, then call whatever you hit the target.