Make sure you are really pushing off your front leg, and kicking over as hard as you can. It took me a year to get a gymnastics ariel. Once you land your first one, it will come so easily to you! Sometimes when I am having trouble with a trick I will drill it hard for a week or two and then take a break from it for a week. After that week, I will try it again and I usually have improved or land it. Try it!