the greatest thing about music, is that it is available for anyone, if you wish to become an engineer, a producer, a composer, or an artist, YOU CAN!
right now i'm dabbling in the process of mastering, tryig to learn without a teacher is harder i think, but definitely more enjoyable, i took a clas to become an audio engineer, and after 6 months i got a shiny piece of paper that said i was certified, since then I've taught myself about 90% more than i ever learned in that class....
I say if you want to do anything at least try, not succeeding isn't failure, not trying is....
I wish you the best with your singing, hope to hear a song someday, though i probably wont know its you , but goodluck anyway!!!