This is a profound misunderstanding of introversion. An introvert may choose to develop and use the skills of social connection that come naturally to an extrovert. But at what cost? If the situation demands extroverted behavior, then do it, fine. But the introvert pays a cost to recharge and come back to whatever equilibrium is normal for them. If the cost/benefit does not work out, an introvert can and should make…
That's largely why I think the introvert/extrovert theory is not super accurate as a theory. In my experience, my energy after a party is not a constant that depends only on my personality. It depends almost entirely on external factors -- what my day was like, where my head is, who I'm meeting, what they're like, what we're doing, etc.
And: I can often place myself in a state of mind that makes me more or less amenable to a social gathering, and helps me enjoy it more; which will generally make me feel less tired/more satisfied when I leave.