Warren Hooper

Hello, i need some help. Ive literally been on the internet all day and been trying to figure this out on my own but no luck. I have a mic and a pair of headphones that im trying to use. No matter what i do it wont detect my mic. But when i plug my headphones into the mic. I can hear my self. But the music plays through my laptop -_-. When i plug my heaphones into the laptop. The music plays through the headphones but my mic is still undetected and my voice is being recorded through the laptop. If that makes sense. Can someone please help. Thanks