What a great dilemma to have, Genna - Congrats!
I can only tell you what I would do...
I would delegate myself to do the quality control of the baking process. I would be the one making the dough, maybe with my spouse or mother... someone who wouldn't hate me if I yelled at them! (not that I would ever do that-ha!) Since there's the issue of safety in baking, I would want to be the one responsible and accountable for this.
I would delegate everything else to free myself from all but the baking. I personally would not be able to jump back and forth without risking a mistake.
The other parts have more flexibility, and the world doesn't end if there's a mistake. If you train everyone like crazy, and have photos, or better yet - actual examples of the process for which each person is delegated.
I like the advice about hiring interns from a cooking school if there's one near you... maybe there is a community college class from which to recruit help.
Friends who are volunteering - I would think of their specific talents and utilizing them accordingly...
A friend who can't physically be there could make bows, print labels, maintain your etsy shop while you are unavailable -- whatever can be done remotely
A crafty friend could decorate or package the cookies
A business/number friend would be in charge of counting, printing, doing the business end
A great organizer could be the one gathering shipping supplies, packing boxes, and do the actual shipping
And reward EVERYONE who helps you with some kind of party... or the offer of free baking for their next birthday party, or reciprocal help.
Good luck and again, congrats! Let us know how it all works out!
best,
liz