How do i keep my kitten cool?

i have a 2 month old kitten and i want to know how to keep him cool because it's really hot in my house he doesn't drink a lot of water. i tried wetting him a little but he gets angry and goes to sleep under the bed and he doesn't really like the fan. he sometimes breath really fast when he sleeps should i be worried? he acts like he usually does. a while ago he meowed a lot but then i found out he got mad at the flies that got into my house he tries to kill the flies but can't