G'day Flako
Most of the area around Warnersbay is not ideal for beginners
The guys you see there are generally all experienced and are using race boards and sail with the Windsurfers out of Marmong point
The launches and landings are a bit difficult with roads and power lines in close proximity so you need to have that sorted before heading there or have an experienced person guiding you.
All the places that Boardcrazy has suggested are the usual places to go in the correct wind conditions.
There are also some other flat water spots to the south on Tuggera lakes and north around Port Stephens.
Oldbar is also an excellent flat water spot during the summer seabreezes to improve your skills on a weekend kite trip.
But the sooner you like the wave the better as we got plenty of them at any beach
