I'd change your initial points up a bit:
- Assuming you're under engine leaving the harbor, put the bow into the wind (do you have a relative wind indicator?)
- Put the main up
- Decide roughly where you want to go, to port or stbd
- Turn off the wind in that direction enough that the main fills with wind
- Turn off engine
- Deploy genoa
- Decide more specifically where you want to go and turn the boat in that direction
- Trim the sails to your new point of sail. Always start from the front of the boat, and trim to the telltails. The closer you are on the wind the tighter the sheets have to be, the further you are off the wind the looser.
For tacking: The tiller just changes direction of the boat. Tacking means changing course though the wind. Because the boat doesn't sail upwind you have to go through the wind quickly to avoid irons. So if you're on a starboard tack (wind is blowing across stbd side of the boat) and you want to get on port tack,
- you'd push the tiller over to port so the bow of the boat swings to starboard
- the boat will swing through the wind until the main swings across and the genoa tries to blow through the hole
- release the genoa port sheet
- stop the turn of the boat with the tiller (push it back to port)
- haul in the genoa starboard sheet
- retrim genoa and main for new point of sail
In general whenever you make a course change you have to say
- Am I going to need a tack or gybe for my new desired course
- If so execute the maneuver
- Get the boat pointed in the desired direction
- Trim sails to the telltails front to back