I haven't tried this yet, but will next summer:

https://www.northcarolinacharm.com/how-to-kill-mosquito-larv...

Also coconut oil masks the body. As long as you haven’t sweated your smell through your close a light oil topping may buy you several hours of concealment.

door discipline, dont keep it open, sweep yourself for piggybackers.

electric mosquito racket.

hunt blood engorged mosquitoes with extreme prejudice. each such kill prevents hundreds more.

https://youtu.be/6BhV-o77RqQ

We have genetically engineered mosquitoes that breed with wild types that reduce the life span of adult mosquitoes to reduce the spread of disease. We have biological agents that do the same. We have chemicals that stop the larva from developing into adult mosquitos. We have chemicals that can be vaporised to deter mosquitoes. We also have chemicals that you can apply that will stop mosquitoes from biting you (and will melt plastic).

Or just use a fly screen. I built one recently for my awning style window.

Look up thermacell devices and methoprene pelletes

It is not a repellent but seems to actively kill them/render them unable to fly [Metofluthrin (Pyrethroid)]

https://www.peacefulsleepsa.co.za/products/in-room-solutions...