The word which means active and energetic​

industrious, vigorous, spry, powerful, dynamic, spirited, lively, active, sprightly, aggressive, strong, enterprising, tireless, animated, breezy, brisk, driving, forcible, fresh, hardy

industrious, vigorous, spry, powerful, dynamic, spirited, lively, active, sprightly, aggressive, strong, enterprising, tireless, animated, breezy, brisk, driving, forcible, fresh, hardy, and of course, active

teenagers are certainly stereotyped as moody.

most people view teenagers as naturally moody and grumpy, even when this is wrong. many teens are suffering from depression but it is brushed off as "just a phase" or "that's just cause they're a teenager"