Like next to the health bar, The Energy Health is for jumping and when you have a low energy. You can't jump until your energy comes up.
What I find best, is to look at free models, and study how they work. So if you find one that is an energy meter, study it and see how it works, then make your own.
This is not a request site.
do you know how to script or do you want us to give u the whole script so you dont have to do any work