It's a matter of timing. You just need to practice.
My techniques change depending on whether I scared myself or I annoyed myself with slow tacks.
1)Get the boat in position. You need to be pointing high but still have good speed. Watch for waves.
2) Move aft until up can in come from the wire and just miss the traveler.
3) These thing happen in sequence but almost at the same time. The sequence depends on how much I have scared myself or how tired I am.
(conservative) Easy the main until you stop flying a hull, start to come in from the wire and push the tiller to tack the boat, hit the tramp and release the trap, easy the main, flip the tiller, start pulling the main in as you go across, attach the trap and go out pulling the main in as you go.
(not scared) push the tiller, ease the main, and start in at about the same time. The rest is about the same.
Now that you are confused, the key is to stay powered up as long as possible and use the natural motion of the boat to complete a tack.
You are pointing hard with good speed. You pinch the boat up and ease the main so it will keep going instead of windmilling. You come in off the wire to keep the boat from falling on top of you and scramble across taking care of necessary things as you go
Now go practice in lighter air.
(I don't like calling this a roll tack. Roll tacking a Laser, you can exit a tack faster than you go into it. You are using your weight and your strenght to propel the boat using the center board as a paddle. I have never seen anyone do that on a multihull)