I wish you the very best! I haven't tried it myself, but I've read in many places that partnering in JVs can be a very important element of success.
But getting good partners is essential. "One bad apple spoils the rest," as they say. Have you determined exactly what skills you need in your partners? Have you planned some sort of interview process? Are you limiting the number of JVs in the beginning and growing it later? How do you plan to evaluate the work done by your partners? Have you thought about eventually growing into an agency?
It takes guts to put yourself out there by stating your audacious ($150K per year working 1 hour a day!

) goal and publishing your journey. I applaud you for it and I look forward to reading more.