Tell me how to sing well.

[Sandform]

I like singing but unfortunately I think the only thing that can stand my voice is my shower head. A few people have said I had a good voice but I don't trust their opinions lol. Anyways so tell me how to sing well/better if you know how. http://www.youtube.com/user/sandform Bare with me if you watch the video below...I was going off of what I remembered the song sounded like, and I was reading lyrics off of a page hehe.