No matter what the circumstances, enjoy, enjoy, enjoy.
Do not forget your hobbies, favorite pastimes, and whatever you may like to do, and do take regular time off for this.
Your inexpensive and cheap fun should not hurt anybody.
Make sure of that always.
But don't neglect your sleep and rest, diet, exercise, or sports if you are able to follow any.
Win or lose, you should be a good winner, and a good sporting loser also.
Do not forget to complement or shake hands with your opponent, and have a small party together, even if it's a rare thing that you do.