Hi BlackieJane! I think you have a really beautiful voice, you are so gifted...you sing with soul and with a natural technique.. I think this kind of songs actually fit you perfectly... if those are the kind of songs you want to sing i only can say congratulations just sing them because you do them great! get a repertoire, find a place and sing, the audience will thank you! The rest would be developed with time, i mean i know in this song you are a little nervous, i know it is weird to hear our own voice at first, nothing you cannot issue with some experience (doing this more times)...
I think your talent is bigger than this kind of songs, that is why is hard for me to find things to help you to improve... i`m not saying this song you choose is easy but it is easy for you! maybe if you pick up a song that is a challenge for you, i don't know some aretha franklin song for example (i believe you have the talent for this).. i could say more..
Congratulations!
Sorry for my english, i didn't use the translator this time, just speak with my heart :)