Start with...
If you really want to become a good sailor, take a class or get a mentor, then buy a smaller open boat to learn on, like a Lido 14 or similar and sail it for a season. Smaller boats are less investment and WILL PUT YOU IN CLOSER TOUCH WITH THE WIND AND WATER AND MAKE YOU A BETTOR SAILOR. Then get at least a season or racing under your belt. Nothing improves your skills like racing. If the passion still burns, then go forward. If you find you don't like it, no big loss.
If you really want to become a good sailor, take a class or get a mentor, then buy a smaller open boat to learn on, like a Lido 14 or similar and sail it for a season. Smaller boats are less investment and WILL PUT YOU IN CLOSER TOUCH WITH THE WIND AND WATER AND MAKE YOU A BETTOR SAILOR. Then get at least a season or racing under your belt. Nothing improves your skills like racing. If the passion still burns, then go forward. If you find you don't like it, no big loss.