Doing a Book?

Ok, this is what's happening, i love writing, and last year I've been writing a book. now the book is ready, but im afraid it will be a complete failure or something and that people will see me as "the girl who couldnt make it" :l my friends are telling me i should publish it. they tell me its very good, but, they are my friends, i dont know if they say it just to make me feel good. anyways... i dont think ill be brave enough to pubish it... fuck it.