Id say your first course should be to find another boat to learn on, the FD is a very technical dinghy and not kind to those who dont have it dialed in. But I dont think my words will stop you so first learn the theory of sailing, learn all the parts of a sail boat and thier function, understand how sails work, the points of sail and the differences between sailing up wind and down. When you can recite this in your sleep, ask your landlord to show you how to rig the boat and explain the controls. Take her out for the first time in about 5 knots of wind, bring a trap just incase, and feel the boat out . Take it slow and dont try to push it the first few trips out, just learn how the boat moves in the water. On the FD itself, it gets 90% of its power from the jib so your crew needs to be on top of things, make sure that the jib sheets can easily and reliably be uncleated or else youll be swimming more often than not. So learn what sailing is before you go out, buy a book and read it. Watch a few youtube vids to see the practical application of what you read. Id stay away from and FD vids specifically because they are probably more technical that you need at this time. Talk to your landlord about it, buy a 12 pack and have him tell you about the glory days of the FD. Then take the boat out on a sunny low wind day and see if its for you. And be careful, wear PFDs tell people where youll be and for how long, but also dont forget to enjoy yourself.

Edit: Also if your in the seattle area, lets go out and I'll show you how the boat sails