Took me two years to learn this move.
Hardest part is foiling out. I learned early on how to make it around but couldn't make it over the hump of foiling out, the holy grail.
Watch all the great videos on YouTube and especially ones of Simon on here in the other threads.
Some tips that helped me. Go in with good speed but not too much(not overpowered) at least around 30km/hr works for my kit and I don't want to drop below about 11km/hr to have a chance foiling out. Don't aggressively sheet in and try to go around, open the sail a bit and kinda let yourself fall in to the carve then the lay sail down. I would usually oversheet which would kill my speed. Gradually lay the sail down as your approaching 180, don't sharply lay it down unless your a pro. Keep front arm extended laying the sail down and I tilt the rig back more just a little as I am rounding closer to 360. Its important to be in some wind not a lull or you will not foil out you need to catch the wind and have it slingshot you forward once around to 360. Note i move my back foot from to the outside rail closer to the inside rail as I round up to 360. It feel natural since the board is now pointing downwind a bit to catch more wind and generate speed again and it gives me leverage over the sail and prevents me from getting pulled onto the sail