Is there a word for someone who really has their act together

Is there a word for someone who really has their act together? Someone who has their time well-managed, is focused, works out, has ambitions, eats right. Not necessarily success, but there's a kind of trait that leads to it, that I can't quite put my finger on.

There's strong overlap with people who are competitive or are overachievers, but it's not exactly the same thing. "In the zone" is close, but I'm looking for a more long term or permanent kind of thing — the opposite of a slob or slacker.

Maybe there isn't a word, but there should be.

Solution 1:

There is a concept in psychology called self-actualization. It was described by Abraham Maslow as

"the desire for self-fulfillment, namely the tendency for him [the individual] to become actualized in what he is potentially. This tendency might be phrased as the desire to become more and more what one is, to become everything that one is capable of becoming."

You might consider self-actualized

Solution 2:

These words are in the sci. fi. vernacular, and have been since the 1970s. link

hoopy

really together guy

frood

really amazingly together guy

They are often used together for emphasis.

That Ford Prefect's one really hoopy frood.

Solution 3:

• "Well-adjusted"
• "mature"
• "competent" (as user49727 used in their answer)

You can take those traits to the negative side too with words like:

• "anal (retentive)"

• "fastidious"

• "perfectionist" (though that can be good or bad)

• "persnickety"

Solution 4:

"Am I sure I want to add another answer?" the prompt asks. Let me think... yes.

sharp 2a : keen in intellect : quick-witted b : keen in perception : acute c : keen in attention : vigilant [...]
3: keen in spirit or action: as a : full of activity or energy : brisk b : capable of acting or reacting strongly; especially : caustic [...]
6c : clear in outline or detail : distinct d : set forth with clarity and distinctness [...]
8: stylish, dressy

e.g. "I ran into Carol yesterday at the grocery store - she's one sharp girl."

from m-w.com