Before I get into this, general rule (at least for now) is to take the Skilled Manager perk at the start of a Prisoner run so you will have access to 3 point edicts (except for a Fighter build, I would take Cost Saving Supervisor or Ambitious Experimenter. Both are good to help with money, and you don't really need the higher tier training for Level 2 as a Fighter). Other general rules would be to swap out your starting title immediately for anything else (it adds expense), downgrade your guards to prison guards, and get Self Paid Equipment (under Fort Ganon). Try to keep Order low (increases subsidies), but not too low after level 1 is Subjugated, because if there is a riot it will deduct the Control that is post-riot from your Order. So if you have 15 Order, and -9 Control, you are only safe if Level 1 doesn't riot. If Level 1 does riot the next day, it will be Game Over because Control will be lower than -15.
The rest depends on how you want to play, and building Karryn's stats correctly for your style. There's a level cap, and exp is attributed to each individual stat itself as opposed to just a general "exp bar." Specific actions give exp to certain stats, modified by "exp growth" that's also applicable to each individual stat.
So, the best way to make sure you get the stats you want before Karryn hits her level cap (12 initially, 24 after level 1 is Subjugated), is to buy Earrings that correspond to your build before you start fighting anyone (Earrings have substantial growth rate effects).
Slut build is by far the strongest, and needs Endurance and Energy. [Earrings] Heart is good, as well as [Earrings] Sun (can't rush Sun on Prisoner). Once you get these, make sure you don't use your Halberd or Kicks to avoid leveling the wrong stats until you hit cap. After you get an earring, do mind training. Healing Thoughts and Mind Over Matter are op. You also seem to get a lot more Order for subduing enemies with sex.
Charm build (low sluttiness) needs [Earrings] Moon and some Agility. You will need to start by equipping one item from each category (1 Bracelet, 1 Ring, etc). The "set bonus" of having one of each accessory will also boost Charm growth. So just get these bonuses as your Charm levels up. I would go [Bracelet] Beads, [Ring] Midi, then [Necklace] Clover. Try to have [Earrings] Moon for Level 2. As for playing Charm build, just keep desires low and dodge attacks without attacking. (Prisoners have a charm requirement you need to meet before they will jerk off infront of Karryn, and each type of prisoner has their own charm requirement.)
A Fighter build needs a bit of training in everything. I also like to start fighting day 1 because there is much less Order gained from winning via force. I focus on Dex first, then Agi, then Endurance. Str last. Dex because you want to get Cleave ASAP, and you don't want to be missing Rogues. Agi for evasion, but also makes you go first and sometimes makes enemies skip their turn. Endurance because it gives some good titles that give a lot of Stamina regen which is great for staying on your feet. Also try to keep your clothes on. You want to be using your Power boost and Counter attack Willpower skills every turn instead of desire suppression. A fighter should be able to beat the first boss with sub-10 sluttiness, and net you the Strip Resist gift, which helps with this a lot (although I think I prefer the +crit rate). I don't usually get Earrings for a fighter build, but get [Bracelet] Beads and Red early on.
Focus on Control boosting edicts once level 1 is Subjugated. Control will tank a bit because of the Thug and Goblin problems that arise once the Level 1 tree is unlocked. Need to take care of those asap. I'd recommend No Mandatory Labor for thugs first, then Kitchen and Mess hall next, then Visitor Center, then Basic Guard Training, then Anti-Goblin Squads. Repair Dish Washing and/or Reception to get some Order in a pinch. Usually only worried about Control/Order on a fighter build.
That should be enough to get the ball rolling for you, I personally wouldn't be interested in making a full-fledged guide until the game is completed. Hopefully this helps, though.