First of all, with the mosquitoes, you need to spray insecticides once every two or three days. or you might as well used mosquito coils which come a little cheaper than insecticide spays.
With the issue of water, if you give me your area code which should be on your water bill, i could call my good friend who is currently with the Ghana Water Company Limited (GWCL) to have a check on it for you.
When it come to the money issue, I am struggling a little bit. I will let you know as soon as I find a way forward. I hope this helps.