I really like your tone and hear quite a lot of potential in your voice, to be honest. I would love to hear you go for it, to sing out loud and proud with that pretty tone...I think it will happen naturally for you if you evoke more passion and lose any fear of anyone around you possibly listening. Once I started pushing myself, at first it was madness...my voice was cracking, my throat would get sore, I would literally sometimes work up a sweat (!)...but eventually, I figured it out! And when it finally clicked, I was pleasantly surprised at my newfound capabilities, and a whole new world opened up as far as what material was suddenly within my ability. Keep working at it! Like I said, you really have a lovely tone.