There's nothing wrong with nocturnal emissions, your body has to 'flush the tubes' out every once in a while, so to speak. If you're getting wet dreams and waking up in a pile of jizz, that's a a good sign. The most important thing is that you completely stop watching pornography for life and secondarily it is good to limit or cease masturbation and intentional ejaculation.
It is not a good idea to nuke your testicles with high heat to, in your own words, "decimate your sperm count". Keeping your testicles at an ideal, cool temperature is best for testosterone.