If you're good at kicking then why are you having problems with your balance? He's something that a beginner to advanced with benefit from it will work your balance and the muscles you kick with. stand on one leg, bring 'kicking' leg up and out to the side as is doing a side kick. Keep it hip level and push it out straight, bend the knee back to start phase and repeat for how many reps you want. Change legs. Do this for round kicks, push kicks whatever kicks you want but keep that leg off the ground and roughly hip level. Hope I've explained that well