One of the things that you could do is consider what your army is doing. So, when you play a game consider what went well and what didn't. What units were worth it and what wasn't or was the issue how a unit was used. Then make small tweaks to the list to address these small areas. But that is possibly more how to improve rather than how to lose gracefully.
It is an old axiom but it isn't all about the winning, it is the playing that counts. Sounds a little cheesey sorry about that.