I'll tell you what works for me and see if you can take anything away for your situation...
I have to stay on top of cutting the grass. If the grass starts to get even a little bit long, it provides a haven for mosquitoes to hide in during the day out of the intense summer sun. When the grass is short, there is no place for the mosquitoes to get out of the sun.
I have a lot of sub-irrigation planters that hold my garden plants. Each planter has a water reservoir in the bottom and vent holes plenty big enough for mosquitoes to get in and lay eggs. I put a
mosquito-control liquid meant for ponds-- just a few drops per container -- in the SiPs and in the rain barrels to get rid of mosquito larvae. It's safe for humans, plants and animals. If you have bird baths, it works there, too.
I am constantly on patrol for things holding water. A few weeks ago, I cleaned out some underbrush and found a stash of old cans. I guess the previous resident was saving them up to recycle them and then didn't. Half of them had some water in them.
I think for me, the biggest thing is keeping the grass cut. If the yard gets long, I can't go outside without getting ate up.