how do i

how do i come clean about my depression to my family?? ive sufferee for along time now and monday im finally going to the doctor and confess im kinda nervous but my friend said that i need help and it will be better for my health and kids... please put a paragrapgh of what i should i say!? i need help with how to say it.... i never told anyone about it ive had it for few years now... i honestly dont know how i held up all this time music keeps me relaxed and i force myself to keep myself occupied....