My chicken breasts release a lot of fluid when cooked. How do I prevent this?
Moisture-release is not a result of the cooking process but of the quality of the chicken.  

Try the following experiment:


Buy halal or kosher chicken breast
Buy the cheapest chicken breast you can find.


Now put two pans on the stove, and put the industrial chicken breast in the left pan and put the kosher/halal in the right.  Ensure both pans have the same heat setting, the same amount of fat (I prefer duck fat for frying chicken breast) and watch the amount of moisture coming out of the left one and the fat actually being soaked up by the right one.

So the easiest way to avoid this is to buy good quality chicken...