a guitar is an expression outlet.....it voices your emotions..providing you have the skill let it speak....
speech takes time...my tongue would trip over itself as a
child..i couldnt pronounce words if my life depended on it...i developed my speech but it took awhile....
i had to take it slow,think before i spoke,i listend to other people and avoided bad critism e.c.t

i progressed myself on guitar the same way

every persons voice is unique....
youll get the tools to sing in time...just dont give up