Environment, health and population are interrelated.
Understanding the six ‘skill related fitness’ components which are : agility, balance, power, how fast you are, your reaction time, and how coordinated you are.
Now. Standing long jump, requires skill in power. Let me explain:
Power is the ability to constrict your muscles as quickly as possible. Power, then, uses strength and speed.
I dont know how many components you are allowed to use, but if its just one, say Power, if its more than one, then power, strength, and speed.
You can associate with your friends again , it’s better for people who are hands on learners or need examples and things explained to them , and your more likely to do stuff if your there in person
Either tell her parents or offer support by suggesting specific ways to help her stop using. You should never enable them.