Sounds like fun!
On a small boat crew position is pretty critical to balance. You can tack a bit slower in the beginning but you want to practice both crew getting across the boat quickly and efficiently.
Search some YouTube videos on dinghy
sailing and you'll get an idea.
Mainsheet and tiller handling is generally the Skipper's job on a dinghy. Get a book like "Start Sailing Right" to see how this stuff works.
On most dinghy's the sheetblock is attached at the stern of the boat. As the Skipper
crosses in a tack the standard method is to pass both tiller and sheet behind your back as you cross, while still looking and facing forward. It is an unnatural act at forst but you will get better at it with practice.
If you and the crew are constantly "late" in crossing the boat, sheet out quite a bit as the boom crosses, this way the sail won't fill immediately and capsize
The other focus on tacking is to hit a heading. Just prior to the tack, look 90 degrees upwind. Pick a target on shore - turn the boat cleanly and smoothly until it is aimed at the target and steady the heading.
In the beginning it seems like a lot to do on the tack and it is. But remember when you first drove a car - that seemed complicated at first too - especially if it was a stick. Soon it will be muscle memory. They key is to start doing it the "right" way so you build the right muscle memory.
- You had the right idea - get up on the daggerboard as soon as you can to stop it from going turtle. If you time it right you can be standing on the daggerboard and as the boat rights itself you can step-in/dive into the boat.
Get a 1 liter plastic milk jug (1 Qt). Lay on its side with the handle up. Draw a 30 degree or so diagonal from the top/handle end towards the bottom of the jug to make a cheap
"bailer" with a convenient handle. Add a piece of string and tie it to the mast. With a crew mate, make two and bail 2X as fast. After capsize recover you can bail the boat and forego the tow!