I sound weird when I sing

I love singing. Every time I’m left alone in my dad’s house, especially if the games room in our holiday house is open, I will turn on a speaker and blast music and sing. I just did it a few hours ago, it burns my voice out really fast because I don’t sing professionally but it’s so fun and it’s been an outlet for me for a while now. 

The thing is, every time I sing without music, I sound like some sort of demon. Not in the way that I sound bad, but in the way that I sound like a dead angel or something. I think my voice has a lot of bass/vibration to it, especially when I use my voice training techniques, but since I’m (sadly) a female, despite being a boy, my voice is higher than it should be sometimes. I sound haunting. Good, but haunting and kind of empty in a way. I usually mimic the singer who’s singing rather than singing the song my own way, so it’s not even like I have one specific style or that I’m TRYING to sound creepy, I just always end up sounding like a ghost you’d here if you entered a church used for a trafficking operation. I got told my voice sounded like a siren’s when I was very young and I’ve always been told that I have a good jazz voice so. yeah.