There's a lot of information missing here. Type of
boat, its condition,
equipment, time of year, length of time available, etc.
I would highly recommend cruising
Mexico first, especially if you're inexperienced. While the
passage to
French Polynesia is often pretty easy, I would not recommend it to anyone without
blue water experience. Navigating through the Tuamotus and the Society Islands requires superior skills. Also,
Mexico is a great place to
cruise with beautiful
anchorages, a delightful culture, excellent
food and an established cruising community.
Whereas I know of inexperienced people completing arduous passages without incident, I think it's foolish.
Fair winds and calm seas.