When i sing it sounds like im moaning.. :( oh no?

no matter how hard i try or how much i dont try, how loud or quiet i am it comes out like moaning! my natural talking voice is your basic high pitch california voice, high pitch, calming, i either talk really slow or really fast you get it. ok well i dont know if i sing high or low i think im in the middle cause i can do both; just not well. im a pretty sucky singer. i really want to be able to sing anything from selena gomez to maroon 5 to all time low to mumford and sons to katy perry to the killers to the main to kesha.i dont want to sing like them i just want to be able to do a huge range of songs while keeping my voice unique, well yeah you get it. why does it sound like im moaning and how do i fix it?even when i talk it some times sounds like im moaning i do moan a lot. im just very vocal. i really need to fix it. its embarrassing that i cant sing without sounding like im in pain or overly excited....