2TIM1:1-4 ; john9:4
You must be ministry minded. Be committed.
Phillipians 2:19-22.
Don't be double minded. A double minded man is unstable in everything. Frustration has nothing to do with your job. It's your mind. Be resolute. Give it your best.
Go beyond the call of duty.
Give definition to what it means to be the best.
If you can't do your work for free you have not found something to live for.