The thing that you worked on today is great.
You put effort in, you did your best, and that is that.
Five years from now, will you remember today?
Will you remember that line of code you put in production?
Will you remember the meetings you attended?
What things of significance will you remember five years from now?
I doubt the code you wrote today will still be production in the same format.
Most likely some other person will have re-written it in new technology with new business rules.
Think back five years ago from today?
What were you working on?
Did you create something of value?
Or did you cash your check for that week and toss the memory into the wind?
Never to be remembered or learned from.
So when you go to work tomorrow, try to create something of value.
Something that will last well into the future.
You won't regret it!