It takes time but the more you do it the more you improve..

That's awesome, my advice from some experience with Muay Thai, be careful about form when you're very tired as that's when injuries happen eg. You throw a kick and land with your foot on bone (happened to me).

Break the moves down part by part and practice, the more you do that the quicker your progress. Eg. Turning your hips, foot positioning, balance, where are you losing power in that kick, how do we improve? Etc.

Everyone is lame at first. Stick with it and in a year from now, you won't believe how far you've come.