Eliminate a commitment that is:
- Not satisfying to you, even if you accomplish it.
- Too demanding, because you could do several alternate things for less effort and/or time commitment and with a higher total reward.
- Not rewarding, in terms of either immediate compensation (may or may not be monetary) or in terms of long-term payoff through the opening-up of new opportunities.
- Goal-less. Some tasks are done, in juggling terms, for the sake of keeping the balls in the air. You don't want to keep running on the treadmill in order to stay in the same place.