"Living one day at a time, and consciously dividing my time into useful and satisfying activities, can give me the variety that is said to be the spice of life." (One Day at a Time in Al-Anon)
Useful and satisfying activities.
There are two conditions, here.
In fact, they are essentially the same condition.
Anything satisfying is axiomatically useful, and vice versa.
Trivial pleasures are not satisfying.
The genuinely useful always satisfies.
I keep looking through this line to find the bit where it suggests complaining, thinking about myself, or talking about myself.
My eyesight must be failing in my dotage, because that bit is eluding me.