"The problem with the rat race is that even if you win, you're still a rat" Lily Tomlin
If you are doing work that you believe adds no value to yourself or others, it is easy to become frustrated or de-motivated.
Take a moment and think about your goals and values. Then consider how what you do in your day supports (or not) those values.
For example:
If you value good health; making the time to exercise is a good connection.
If you value kindness; making time to listen to customers and colleagues is a good fit.
Make a list of your top 5-10 values. Think about those as you go through your day. Seeing the big picture can make it easier to put up with little irritations.