First look at your airline, your aircraft is under-utilised, so I would recommend you get it running on more routes. The Misc expenses are a mixture of in-flight service charges and airport fee's (Passenger handling, landing fee, parking fee).
Once you get more routes you'll be able to boost your revenues and hopefully turn a profit. You will make the most profit typically off 1 frequency flights, as it will be better to open up a second new route than add a second frequency to an existing flight.
Good Luck.