mosquitoes are everyone's problem...the only way to stop them is for you to make sure there is no laying water around.
If you have a pond or lake or simply a cup of something unfinished...it will attract mosquitoes....try growing some basil bushes in your backyard same with rosemary... if you have a problem with mosquitoes around the rooms try making a small pot in every room with steams of basil leaves & rosemary...it will keep them away from your room. I also heard garlic helps as well! I read somewhere that also one's breath can attract mosquitoes too so make sure you dont end the night with something sweet...:)
Good Luck, hope this helped!
Some of the biggest eaters of misquitos are:
Swallows-get a swallow house
Bats-get a bat house
Dragonflyies-I don't know what to do here
A fire keeps them away.
I know it sounds weird but if say you have a bonfire, they won't come near. They don't like smoke what so ever.