I have sympathy for you ... even though the conditions are different I have been feeling the same way for a while.
Because I have been one of the better players on playoff teams in multiple districts I have been playing 40-50 matches per season between mixed and adult. It is a real grind because I know the teams are counting on me to win ... so I end up playing to my win, rather than playing to improve.
By the end of the season, win or lose, I feel like I have spent the entire time trying to maintain rather than get better. After Adult sectionals the last three years I have wanted to put away the rackets for months ... except the next mixed season is right around the corner.
I am incapable of saying no to my friends so I find my self desperately hoping to get bumped just so I will be at the bottom of the next band and not have to worry about carrying so much of the load. I want all of that pressure to win off my shoulders.
Anywho ... good luck. I have no advice, only sympathy.
"You should be playing linebacker, not singles."