First decide what genre you want to sing in, then get pro lessons. You are clearly at the beginning stages of singing with no previous voice training. That said, get the training and then see if your voice can hold up to the competition. I'm not trying to be harsh on your ability. just so you know, after 30 years of singing, my voice flat out sucks. I sound just as bad as I did 30 years ago. a guitarist can become great but a bad voice remains a bad voice although with maybe slight improvement over the years. Get the training first.