Branko, my wife and I have started free diving recently (within the past year). We're not great by any means, but getting better. My wife does it a little more than I do. You're welcome to come out to Lake Pleasant when we're there and one of us will buddy up with you. This month we're teaching a Rescue course so we won't have much time, but we will also be there the first and third weekends of December and will have more time. Come out and dive with us!