Preparation:
i was following a guide that recommended to increase all attributes to 40 ASAP. i just finished doing all the side quests and main quests and companion quests available before choosing a faction .
so i had everything done and couldn't progress to chapter 2 until choosing a faction. i was lvl 27 at this point with my attributes at 40.
now i used the infinite money glitch at the armor smith in goliet next to the blacksmith teleporter. i was ending up with around 35000 elexit, buying natural elex and liquor then using the exploit again.
infinite money glitch:
*** Spoiler - click to reveal ***
you need at least 360 liquor and 840 natural elex for all of these skill achievements.
doc sells natural elex 16 at a time, infinite back to back transactions. i bought the liquor (100 at a time, infinite back to back transactions) from the trader at my origin camp. (buy trader from annie at origin for 1000 elexit)
i bought the chemistry ability from a crafting trainer, and the strong elex potion and elex potion recipes (ignore small elex drink).
then i made at docs workstation at the fort, 20 strong Elex Drink and 160 Elex drinks.
Warning! if going for the Human achievement DO NOT consume any elex drinks. elex drinks RAISE COLD level.
with all the elex drinks in hand and a good amount of elex. make 2 or 3 manual save slots to go back to if you want to.
AFTER YOU SAVE drink all the elex drinks you made and you should have hundreds of attribute points and alot of learning points. your cold will probably now be at intuitive as well.
DO NOT TOUCH THE MANUAL SAVES FROM BEFORE DRINKING THE ELEX. make another save after drinking all the elex so you won't have to drink them each time.
your all set to go for the specific achievement see below for this achievement specifics.
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character/Personality/charisma Tree:
go to Sinda in goliet (or any other Charisma trainer). you need attributes like this: Strength 53, Constitution 40, Dexterity 45, Intelligence 70, Cunning 85. and enough elexit to buy the abilities from Sinda (or any other Charisma Trainer). (see money glitch above)
i had 178 attribute points and 28 ability learning points left after getting the achievement.
Post-achievo: reload the save from after drinking all the elex if still going for all the other achievements, or continue the game as normal.